{"id":1697985,"date":"2026-01-16T14:39:03","date_gmt":"2026-01-16T11:39:03","guid":{"rendered":"https:\/\/analyse.optim.biz\/?p=1697985"},"modified":"2026-01-16T14:39:03","modified_gmt":"2026-01-16T11:39:03","slug":"low-porosity-hair-explained-what-it-is-and-how-to-keep-it-hydrated","status":"publish","type":"post","link":"https:\/\/analyse.optim.biz\/?p=1697985","title":{"rendered":"Low Porosity Hair, Explained: What It Is and How to Keep It Hydrated"},"content":{"rendered":"<p><main id=\"main_1-0\" class=\"comp main layout-body--continuous-scroll mntl-block\" data-tracking-container=\"true\"><\/p>\n<article id=\"beauty-article--sc_1-0\" class=\"comp beauty-article--sc beauty-article mntl-article mntl-article--two-column-right-rail sc-ad-container\" data-tracking-container=\"true\">\n<div class=\"loc article-header\">\n<div id=\"article-header_1-0\" class=\"comp article-header mntl-block article-top\">\n<h1 id=\"article-heading_1-0\" class=\"comp article-heading mntl-text-block\">Low Porosity Hair, Explained: What It Is and How to Keep It Hydrated<\/h1>\n<p id=\"article-subheading_1-0\" class=\"comp article-subheading mntl-text-block\">Experts break it down.<\/p>\n<div id=\"article-meta_1-0\" class=\"comp article-meta mntl-article-meta mntl-block\" data-tracking-container=\"true\">\n<div id=\"bylines_1-0\" class=\"comp bylines beauty-bylines mntl-bylines\" data-tracking-container=\"true\">\n<div id=\"mntl-bylines__group_1-0\" class=\"comp mntl-bylines__group mntl-block mntl-bylines__group--author\">\n<div id=\"mntl-bylines__item_1-0\" class=\"comp mntl-bylines__item mntl-attribution__item \"><span class=\"mntl-attribution__item-descriptor\">By<\/span><\/p>\n<div data-tooltip=\"Bianca is a contributing writer for Byrdie specializing in natural hair and skincare. You can find her work in xoNecole, The Everygirl, POPSUGAR, Travel Noire, and more.\u00a0\" data-inline-tooltip=\"true\"> Bianca Lambert<\/p>\n<div id=\"mntl-author-tooltip_1-0\" class=\"comp mntl-author-tooltip mntl-tooltip mntl-group\">\n<div class=\"mntl-author-tooltip__top \">\n<div class=\"mntl-author-tooltip__image-wrapper\">\n<div class=\"img-placeholder\"><img loading=\"lazy\" decoding=\"async\" width=\"200\" height=\"200\" alt=\"Bianca's Photo\" class=\"lazyload mntl-author-tooltip__image mntl-image universal-image__image\" src=\"https:\/\/analyse.optim.biz\/wp-content\/uploads\/2026\/02\/screenshot2019-05-04at2-53-40am-68e2f50ed7644491b4660f76a496564d.webp\" title=\"screenshot2019-05-04at2-53-40am-68e2f50ed7644491b4660f76a496564d\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/analyse.optim.biz\/wp-content\/uploads\/2026\/02\/screenshot2019-05-04at2-53-40am-68e2f50ed7644491b4660f76a496564d.webp\" width=\"200\" height=\"200\" class=\"img--noscript mntl-author-tooltip__image mntl-image universal-image__image\" alt=\"Bianca's Photo\" title=\"screenshot2019-05-04at2-53-40am-68e2f50ed7644491b4660f76a496564d\"><\/div>\n<\/div>\n<div id=\"mntl-author-tooltip__name_1-0\" class=\"comp mntl-author-tooltip__name mntl-attribution__item \">\nBianca Lambert\n<\/div>\n<div id=\"mntl-author-tooltip__social-nav_1-0\" class=\"comp mntl-author-tooltip__social-nav beauty-social-nav mntl-social-nav social-nav--tooltip\" data-tracking-container=\"true\">\n<ul class=\"social-nav__list\">\n<li class=\"social-nav__item social-nav__item--instagram\">\n<li class=\"social-nav__item social-nav__item--linkedin\"><\/ul>\n<\/div>\n<div class=\"mntl-author-tooltip__bio\">\nBianca is a contributing writer for Byrdie specializing in natural hair and skincare. You can find her work in xoNecole, The Everygirl, POPSUGAR, Travel Noire, and more.\u00a0\n<\/div>\n<\/div>\n<div class=\"mntl-author-tooltip__bottom\">\nByrdie&#8217;s Editorial Guidelines\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div id=\"mntl-bylines__item_2-0\" class=\"comp mntl-bylines__item mntl-attribution__item mntl-attribution__item--has-date\"><span class=\"mntl-attribution__item-descriptor\">and<\/span><\/p>\n<div data-tooltip=\"&lt;p&gt;Abby is a former associate editor at Byrdie and has three years of experience in beauty editorial.&lt;\/p&gt;\" data-inline-tooltip=\"true\"> Abby Dupes<\/p>\n<div id=\"mntl-author-tooltip_2-0\" class=\"comp mntl-author-tooltip mntl-tooltip mntl-group\">\n<div class=\"mntl-author-tooltip__top \">\n<div class=\"mntl-author-tooltip__image-wrapper\">\n<div class=\"img-placeholder\"><img loading=\"lazy\" decoding=\"async\" width=\"200\" height=\"200\" alt=\"Byrdie associate editor Abby Dupes\" class=\"lazyload mntl-author-tooltip__image mntl-image universal-image__image\" src=\"https:\/\/analyse.optim.biz\/wp-content\/uploads\/2026\/02\/abbydupesheadshot-952b509113e54977aa4f5bd54644cd90-2.webp\" title=\"abbydupesheadshot-952b509113e54977aa4f5bd54644cd90-2\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/analyse.optim.biz\/wp-content\/uploads\/2026\/02\/abbydupesheadshot-952b509113e54977aa4f5bd54644cd90-2.webp\" width=\"200\" height=\"200\" class=\"img--noscript mntl-author-tooltip__image mntl-image universal-image__image\" alt=\"Byrdie associate editor Abby Dupes\" title=\"abbydupesheadshot-952b509113e54977aa4f5bd54644cd90-2\"><\/div>\n<\/div>\n<div id=\"mntl-author-tooltip__name_2-0\" class=\"comp mntl-author-tooltip__name mntl-attribution__item \">\nAbby Dupes\n<\/div>\n<div class=\"mntl-author-tooltip__bio\">\n<p>Abby is a former associate editor at Byrdie and has three years of experience in beauty editorial.<\/p>\n<\/div>\n<\/div>\n<div class=\"mntl-author-tooltip__bottom\">\nByrdie&#8217;s Editorial Guidelines\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"mntl-attribution__item-date\">Published on January 16, 2026 09:39AM<\/div>\n<\/div>\n<div id=\"mntl-bylines__group_2-0\" class=\"comp mntl-bylines__group mntl-block mntl-bylines__group--beauty_wellness_reviewer\">\n<div id=\"mntl-bylines__item_3-0\" class=\"comp mntl-bylines__item mntl-attribution__item \"><span class=\"mntl-attribution__item-descriptor\">Reviewed by<\/span><\/p>\n<div data-tooltip='Sophia Emmanuel is an IAT-certified trichologist and licensed cosmetologist based in New York.\u00a0She owns and operates the &lt;a href=\"https:\/\/crownworthy.com\/\" data-component=\"link\" data-source=\"inlineLink\" data-type=\"externalLink\" data-ordinal=\"1\"&gt;Crown Worthy&lt;\/a&gt; beauty salon in New York City.\u00a0\u00a0' data-inline-tooltip=\"true\"> Sophia Emmanuel<\/p>\n<div id=\"mntl-author-tooltip_3-0\" class=\"comp mntl-author-tooltip mntl-tooltip mntl-group\">\n<div class=\"mntl-author-tooltip__top \">\n<div class=\"mntl-author-tooltip__image-wrapper\">\n<div class=\"img-placeholder\"><img loading=\"lazy\" decoding=\"async\" width=\"200\" height=\"200\" alt=\"Sophia Emmanuel\" class=\"lazyload mntl-author-tooltip__image mntl-image universal-image__image\" src=\"https:\/\/analyse.optim.biz\/wp-content\/uploads\/2026\/02\/sophiaemmanuelbio-9c9762ff738b4d6485287f37b9f6a821-4.webp\" title=\"sophiaemmanuelbio-9c9762ff738b4d6485287f37b9f6a821-4\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/analyse.optim.biz\/wp-content\/uploads\/2026\/02\/sophiaemmanuelbio-9c9762ff738b4d6485287f37b9f6a821-4.webp\" width=\"200\" height=\"200\" class=\"img--noscript mntl-author-tooltip__image mntl-image universal-image__image\" alt=\"Sophia Emmanuel\" title=\"sophiaemmanuelbio-9c9762ff738b4d6485287f37b9f6a821-4\"><\/div>\n<\/div>\n<div id=\"mntl-author-tooltip__name_3-0\" class=\"comp mntl-author-tooltip__name mntl-attribution__item \"><span class=\"mntl-attribution__item-descriptor\">Reviewed by<\/span><br \/>\nSophia Emmanuel\n<\/div>\n<div class=\"mntl-author-tooltip__bio\">\nSophia Emmanuel is an IAT-certified trichologist and licensed cosmetologist based in New York.\u00a0She owns and operates the Crown Worthy beauty salon in New York City.\u00a0\u00a0\n<\/div>\n<\/div>\n<div class=\"mntl-author-tooltip__bottom\">\nAbout Byrdie&#8217;s Beauty &amp; Wellness Board\n<\/div>\n<\/div>\n<\/div>\n<div class=\"mntl-attribution__item-postscript\">Trichologist<\/div>\n<\/div>\n<\/div>\n<div id=\"mntl-bylines__group_3-0\" class=\"comp mntl-bylines__group mntl-block mntl-bylines__group--fact_checker\">\n<div id=\"mntl-bylines__item_4-0\" class=\"comp mntl-bylines__item mntl-attribution__item \"><span class=\"mntl-attribution__item-descriptor\">Fact checked by<\/span><\/p>\n<div data-tooltip=\"Michelle Regalado is a seasoned editor, fact-checker, and content strategist with expertise in women's lifestyle news.\" data-inline-tooltip=\"true\"> Michelle Regalado<\/p>\n<div id=\"mntl-author-tooltip_4-0\" class=\"comp mntl-author-tooltip mntl-tooltip mntl-group\">\n<div class=\"mntl-author-tooltip__top \">\n<div class=\"mntl-author-tooltip__image-wrapper\">\n<div class=\"img-placeholder\"><img loading=\"lazy\" decoding=\"async\" width=\"200\" height=\"200\" alt=\"Michelle Regalado\" class=\"lazyload mntl-author-tooltip__image mntl-image universal-image__image\" src=\"https:\/\/analyse.optim.biz\/wp-content\/uploads\/2026\/02\/regalado_headshot-549f57cef4b54ea193d6181c1e97d226-1.webp\" title=\"regalado_headshot-549f57cef4b54ea193d6181c1e97d226-1\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/analyse.optim.biz\/wp-content\/uploads\/2026\/02\/regalado_headshot-549f57cef4b54ea193d6181c1e97d226-1.webp\" width=\"200\" height=\"200\" class=\"img--noscript mntl-author-tooltip__image mntl-image universal-image__image\" alt=\"Michelle Regalado\" title=\"regalado_headshot-549f57cef4b54ea193d6181c1e97d226-1\"><\/div>\n<\/div>\n<div id=\"mntl-author-tooltip__name_4-0\" class=\"comp mntl-author-tooltip__name mntl-attribution__item \"><span class=\"mntl-attribution__item-descriptor\">Fact checked by<\/span><br \/>\nMichelle Regalado\n<\/div>\n<div id=\"mntl-author-tooltip__social-nav_4-0\" class=\"comp mntl-author-tooltip__social-nav beauty-social-nav mntl-social-nav social-nav--tooltip\" data-tracking-container=\"true\">\n<ul class=\"social-nav__list\">\n<li class=\"social-nav__item social-nav__item--x\"><\/ul>\n<\/div>\n<div class=\"mntl-author-tooltip__bio\">\nMichelle Regalado is a seasoned editor, fact-checker, and content strategist with expertise in women&#8217;s lifestyle news.\n<\/div>\n<\/div>\n<div class=\"mntl-author-tooltip__bottom\">\nLEARN ABOUT BYRDIE&#8217;S EDITORIAL GUIDELINES\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"loc article-content\">\n<div id=\"article__broad-video-jw_1-0\" class=\"comp article__broad-video-jw mntl-jwplayer-broad mntl-block is-hidden\" data-pixel-depth=\"100\">\n<div id=\"mntl-jwplayer-broad__title_1-0\" class=\"comp mntl-jwplayer-broad__title mntl-block\"><button id=\"mntl-jwplayer-broad__title-icon--close_1-0\" class=\"comp mntl-jwplayer-broad__title-icon--close mntl-block text-label-100\" data-click-tracked=\"false\"><span id=\"mntl-text-block_2-0\" class=\"comp mntl-text-block\">Close<\/span><\/button><\/div>\n<\/div>\n<div id=\"mntl-block_2-0\" class=\"comp mntl-block article__body right-rail\">\n<figure id=\"mntl-universal-primary-image_1-0\" class=\"comp mntl-universal-primary-image primary-image\" data-tracking-container=\"true\">\n<div class=\"primary-image__media\">\n<div class=\"img-placeholder\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/analyse.optim.biz\/wp-content\/uploads\/2026\/02\/hair-porosity-1-2e71d5b81ea749ac924d4b8157c5e81b-3.webp\" width=\"1280\" height=\"960\" alt=\"Person with curly hair side view demonstrating hair texture\" class=\" primary-image__image mntl-primary-image--blurry\" title=\"hair-porosity-1-2e71d5b81ea749ac924d4b8157c5e81b-3\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/analyse.optim.biz\/wp-content\/uploads\/2026\/02\/hair-porosity-1-2e71d5b81ea749ac924d4b8157c5e81b-3.webp\" width=\"1280\" height=\"960\" class=\"loaded primary-img--noscript primary-image__image mntl-primary-image--blurry\" alt=\"Person with curly hair side view demonstrating hair texture\" title=\"hair-porosity-1-2e71d5b81ea749ac924d4b8157c5e81b-3\"><\/div>\n<\/div><figcaption id=\"primary-image__figcap_1-0\" class=\"comp primary-image__figcap mntl-figure-caption figure-article-caption\"><span class=\"figure-article-caption-owner\"><\/p>\n<p>Death to Stock<\/p>\n<p><\/span><\/figcaption><\/figure>\n<div id=\"mntl-sc-page_1-0\" class=\"comp mntl-sc-page mntl-block\" data-sc-sticky-offset=\"125\" data-sc-ad-label-height=\"16\" data-sc-ad-track-spacing=\"100\" data-sc-min-track-height=\"250\" data-sc-max-track-height=\"600\" data-sc-breakpoint=\"50em\" data-sc-load-immediate=\"5\" data-sc-content-positions=\"[1, 1250, 1, 1, 1, 1, 1, 1, 1]\" data-bind-scroll-on-start=\"true\">\n<div id=\"mntl-sc-block_1-0\" class=\"comp mntl-sc-block beauty-sc-block-callout--finalverdict beauty-sc-block-callout mntl-sc-block-callout mntl-block theme-finalverdict\" data-tracking-id=\"mntl-sc-block-callout\" data-tracking-container=\"true\">\n<p id=\"mntl-sc-block-callout-heading_1-0\" class=\"comp mntl-sc-block-callout-heading mntl-text-block\">Key Takeaways<\/p>\n<div id=\"mntl-sc-block-callout-body_1-0\" class=\"comp mntl-sc-block-callout-body mntl-text-block\">\n<ul>\n<li>Low porosity hair has a tightly sealed cuticle, making it resistant to absorbing water and treatments.<\/li>\n<li>Use heat to open the cuticle and improve absorption of moisturizing hair products. <\/li>\n<li>Incorporate protein treatments in your routine to strengthen low porosity hair and reduce breakage.<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<p id=\"mntl-sc-block_2-0\" class=\"comp mntl-sc-block beauty-sc-block-html mntl-sc-block-html\"> There may be more at play with your damaged hair than the obvious: achieving healthy hair runs deeper than simply choosing the right ingredients, styling tools, and products to keep your strands hydrated. While texture and density are key qualities in determining a proper routine for your hair, porosity could be the other major key missing from the equation.\n<\/p>\n<p id=\"mntl-sc-block_4-0\" class=\"comp mntl-sc-block beauty-sc-block-html mntl-sc-block-html\"> If you didn\u2019t realize already, moisture plays a critical role in overall hair health. For context, low porosity hair can retain moisture for considerably long periods (hence why your hair may take forever to dry, with or without a blow dryer. But the caveat? Its extremely flat cuticle layer also makes low porosity hair less likely to absorb water and nourishing hair treatments.\n<\/p>\n<p id=\"mntl-sc-block_6-0\" class=\"comp mntl-sc-block beauty-sc-block-html mntl-sc-block-html\"> Low porosity hair can honestly feel like a double-edged sword to deal with, but there\u2019s good news\u2014we know just who to ask about maximizing its potential. For the ins and outs of caring for low porosity hair, we turned to top dermatologist Joyce Park, MD, as well as curl specialists Marissa Rullan of Studio 210 and Leigh Hardges from Maxine Salon. Below, learn everything from how to find out your hair&#8217;s porosity to what to look for on product labels.<\/p>\n<p id=\"mntl-sc-block_8-0\" class=\"comp mntl-sc-block beauty-sc-block-html mntl-sc-block-html\"><strong>Keep reading for their tips on how to care for low-porosity hair on wash day and beyond.<\/strong><\/p>\n<div id=\"mntl-sc-block_10-0\" class=\"comp mntl-sc-block beauty-sc-block-callout--meetourexpert beauty-sc-block-callout mntl-sc-block-callout mntl-block theme-meetourexpert\" data-tracking-id=\"mntl-sc-block-callout\" data-tracking-container=\"true\">\n<p id=\"mntl-sc-block-callout-heading_2-0\" class=\"comp mntl-sc-block-callout-heading mntl-text-block\">Meet the Experts<\/p>\n<div id=\"mntl-sc-block-callout-body_2-0\" class=\"comp mntl-sc-block-callout-body mntl-text-block\">\n<ul>\n<li>Joyce Park, MD, is a board-certified dermatologist based in Washington, founder of teledermatology clinic\u00a0Skin Refinery, and creator of\u00a0Tea With MD.<\/li>\n<li>Marissa Rullan is a curly hair specialist and Innersense educator based in the Bay Area.<\/li>\n<li>Leigh Hardges is a stylist at\u00a0Maxine Salon in Chicago.<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<h2 id=\"mntl-sc-block_11-0\" class=\"comp mntl-sc-block beauty-sc-block-heading mntl-sc-block-heading\"><span class=\"mntl-sc-block-heading__text text-title-300\"> What Is Hair Porosity? <\/span><\/h2>\n<p id=\"mntl-sc-block_12-0\" class=\"comp mntl-sc-block beauty-sc-block-html mntl-sc-block-html\"> Hair porosity refers to how your hair retains and absorbs moisture based on how open or closed the cuticle layer (the outermost layer) is. To better understand the role of the cuticle in hair porosity, here&#8217;s what you need to know about the structure of hair strands: &#8220;The medulla is the innermost layer of the hair shaft, and it is composed of cells and air spaces and is generally more prominent in thick or coarse hair,&#8221; Park says, &#8220;The cortex is the middle layer and makes up the majority of the hair structure. It contains keratin, which provides strength and elasticity to the hair. The cortex also determines the color and texture of the hair.&#8221;\n<\/p>\n<p id=\"mntl-sc-block_14-0\" class=\"comp mntl-sc-block beauty-sc-block-html mntl-sc-block-html\"> &#8220;Then we have the outermost layer of the hair shaft, the cuticle, which consists of overlapping, transparent cells that resemble shingles on a roof,&#8221; Park continues, &#8220;The cuticle serves as a protective layer for the cortex, preventing damage and contributing to the hair&#8217;s overall strength and shine. The health and condition of the cuticle also affects the hair&#8217;s texture and appearance.&#8221;\n<\/p>\n<h2 id=\"mntl-sc-block_16-0\" class=\"comp mntl-sc-block beauty-sc-block-heading mntl-sc-block-heading\"><span class=\"mntl-sc-block-heading__text text-title-300\"> What Is Low Porosity Hair? <\/span><\/h2>\n<p id=\"mntl-sc-block_17-0\" class=\"comp mntl-sc-block beauty-sc-block-html mntl-sc-block-html\"> Low\u00a0porosity\u00a0hair has a tightly sealed cuticle layer, making it resistant to moisture absorption. &#8220;Such hair often feels smooth and can seem resistant to styling products,&#8221; says Park.\n<\/p>\n<p id=\"mntl-sc-block_19-0\" class=\"comp mntl-sc-block beauty-sc-block-html mntl-sc-block-html\"> &#8220;Low\u00a0porosity\u00a0[hair] is typically caused by genetics, while high\u00a0porosity\u00a0can result from environmental damage, excessive heat styling, or chemical treatments,&#8221; she adds.\n<\/p>\n<h2 id=\"mntl-sc-block_21-0\" class=\"comp mntl-sc-block beauty-sc-block-heading mntl-sc-block-heading\"><span class=\"mntl-sc-block-heading__text text-title-300\"> How to Determine Your Hair&#8217;s Porosity <\/span><\/h2>\n<p id=\"mntl-sc-block_22-0\" class=\"comp mntl-sc-block beauty-sc-block-html mntl-sc-block-html\"> Curious how to test your own hair&#8217;s absorbency abilities? Park and Rullan say there are two at-home ways to do so: the sink or float test and the spray bottle test. &#8220;These tests provide insights into your hair&#8217;s ability to absorb and retain moisture, helping you tailor your hair care routine accordingly,&#8221; Park says, &#8220;[But] keep in mind that individual hair strands may vary, so it&#8217;s helpful to consider the overall pattern across your hair.&#8221;<em><br \/><\/em><\/p>\n<h3 id=\"mntl-sc-block_24-0\" class=\"comp mntl-sc-block beauty-sc-block-subheading mntl-sc-block-subheading\"><span class=\"mntl-sc-block-subheading__text\"> Try the Sink or Float Test <\/span><\/h3>\n<p id=\"mntl-sc-block_25-0\" class=\"comp mntl-sc-block beauty-sc-block-html mntl-sc-block-html\"> For the sink or float test, &#8220;You&#8217;ll take a few strands of hair that have naturally shed from the scalp and fill a cup with room temperature water,&#8221; Rullan explains. &#8220;Remember, hot water opens the cuticle, so if the water is too hot, regardless of the porosity, the hair will load up with water and sink. High porosity is so open; the hair will quickly absorb water and then sink to the bottom of the cup. Low porosity hair is water-resistant, which means the strands will remain floating towards the surface even after a few minutes. If the hair hovers in the middle, you have medium or (normal) porosity which absorbs and retains water well.&#8221;\u00a0\n<\/p>\n<h3 id=\"mntl-sc-block_27-0\" class=\"comp mntl-sc-block beauty-sc-block-subheading mntl-sc-block-subheading\"><span class=\"mntl-sc-block-subheading__text\"> Test with a Spray Bottle <\/span><\/h3>\n<p id=\"mntl-sc-block_28-0\" class=\"comp mntl-sc-block beauty-sc-block-html mntl-sc-block-html\"> Next is the spray bottle test. &#8220;You&#8217;ll simply mist a section of the hair and closely watch,&#8221; instructs Rullan. &#8220;If the water beads up and fails to absorb, maybe even rolling off of the hair after a few minutes, you have low porosity hair.&#8221;<\/p>\n<h2 id=\"mntl-sc-block_30-0\" class=\"comp mntl-sc-block beauty-sc-block-heading mntl-sc-block-heading\"><span class=\"mntl-sc-block-heading__text text-title-300\"> How to Take Care of Low Porosity Hair <\/span><\/h2>\n<p id=\"mntl-sc-block_31-0\" class=\"comp mntl-sc-block beauty-sc-block-html mntl-sc-block-html\"> &#8220;Understanding your hair&#8217;s\u00a0porosity\u00a0helps tailor a hair care routine,&#8221; according to Park. Here are the best tips on how to take care of low porosity hair, according to the experts:\n<\/p>\n<h3 id=\"mntl-sc-block_33-0\" class=\"comp mntl-sc-block beauty-sc-block-subheading mntl-sc-block-subheading\"><span class=\"mntl-sc-block-subheading__text\"> Moisturize Using Emollient Ingredients <\/span><\/h3>\n<p id=\"mntl-sc-block_34-0\" class=\"comp mntl-sc-block beauty-sc-block-html mntl-sc-block-html\"> &#8220;High-porosity hair frizzes out when exposed to humidity and becomes more easily dry and brittle in dry heat,&#8221; says Rullan. &#8220;Low porosity hair is moisture resistant because the cuticle layer is so tightly closed that water molecules are too big to penetrate the hair shaft.&#8221; In other words, moisture is the key no matter your hair&#8217;s porosity; look for products with emollients\u2014or softening ingredients such as aloe, avocado, jojoba oil, and shea butter\u2014as they form a barrier and trap water.<\/p>\n<h3 id=\"mntl-sc-block_36-0\" class=\"comp mntl-sc-block beauty-sc-block-subheading mntl-sc-block-subheading\"><span class=\"mntl-sc-block-subheading__text\"> Embrace Warmth <\/span><\/h3>\n<p id=\"mntl-sc-block_37-0\" class=\"comp mntl-sc-block beauty-sc-block-html mntl-sc-block-html\"> &#8220;Caring for low-porosity\u00a0hair involves utilizing heat, such as warm water and heat-based treatments, to enhance product absorption,&#8221; Park says. Why?<em>\u00a0<\/em>Warmth has the ability to open hair&#8217;s cuticles, allowing for nourishing products to penetrate deep into strands. If you plan on using hot styling tools on your low porosity hair, Park recommends the K\u00e9rastase Nutritive Heat Protecting Leave-In Spray<strong>\u00a0&#8220;<\/strong>because it offers both heat protection, while it also deeply moisturizes.&#8221;\n<\/p>\n<h3 id=\"mntl-sc-block_39-0\" class=\"comp mntl-sc-block beauty-sc-block-subheading mntl-sc-block-subheading\"><span class=\"mntl-sc-block-subheading__text\"> Wash Hair Using a Sulfate-Free Shampoo <\/span><\/h3>\n<p id=\"mntl-sc-block_40-0\" class=\"comp mntl-sc-block beauty-sc-block-html mntl-sc-block-html\"> Rullan also recommends all hair types always use a sulfate-free shampoo, as sulfates can be quite drying. For those of us with drier hair, she recommends pairing your shampoo days with your mask or treatment day because, as she puts it, &#8220;No matter the porosity, the essential goal with styling is to aid in water retention creating a shiny, juicy curl.&#8221;\u00a0And if you&#8217;re working with tangled hair, Hardges recommends that you &#8220;be gentle when you&#8217;re detangling the hair while wet. Remove tangles starting at the ends and work your way up.&#8221;\n<\/p>\n<h3 id=\"mntl-sc-block_42-0\" class=\"comp mntl-sc-block beauty-sc-block-subheading mntl-sc-block-subheading\"><span class=\"mntl-sc-block-subheading__text\"> Lock in Moisture with a Deep Conditioner <\/span><\/h3>\n<p id=\"mntl-sc-block_43-0\" class=\"comp mntl-sc-block beauty-sc-block-html mntl-sc-block-html\"> As for styling, Rullan says moisture-locking products are best. &#8220;We want to trap in as much water as possible. Squeeze out excess moisture before applying product, but don&#8217;t towel dry. With low porosity hair, steam from the shower is helpful, so use that to your advantage.&#8221; Hardges recommends using a deep conditioner in lieu of a regular conditioner as they &#8220;are thicker and more concentrated.&#8221; For an extra dose of shine, &#8220;Use apple cider vinegar after rinsing out the mask to help close the cuticle. This strengthens the strands and makes for a shinier finish,&#8221; says Hardges.\n<\/p>\n<h3 id=\"mntl-sc-block_45-0\" class=\"comp mntl-sc-block beauty-sc-block-subheading mntl-sc-block-subheading\"><span class=\"mntl-sc-block-subheading__text\"> Add Protein Treatments to Your Routine <\/span><\/h3>\n<p id=\"mntl-sc-block_46-0\" class=\"comp mntl-sc-block beauty-sc-block-html mntl-sc-block-html\"> Protein treatments can help reinforce and repair the hair&#8217;s structure, minimizing breakage and promoting strength, according to Park. This is especially beneficial for low-porosity hair, which can be more prone to damage due to limited moisture intake, making strands brittle.\n<\/p>\n<div id=\"mntl-sc-block_48-0\" class=\"comp mntl-sc-block beauty-sc-block-featuredlink mntl-sc-block-featuredlink mntl-block learnmore-link\"><span class=\"link__wrapper\">How to Choose a Protein Treatment for Natural Hair<\/span><\/div>\n<h3 id=\"mntl-sc-block_50-0\" class=\"comp mntl-sc-block beauty-sc-block-subheading mntl-sc-block-subheading\"><span class=\"mntl-sc-block-subheading__text\"> Maintain Hydration with Protective Styles <\/span><\/h3>\n<p id=\"mntl-sc-block_51-0\" class=\"comp mntl-sc-block beauty-sc-block-html mntl-sc-block-html\"> Rullan left us with a few gems at the end of our chat: &#8220;If definition and moisture retention are your priority, twists, braid-outs, and Bantu knots are the way to go. These sets help trap moisture in and allow more time for the hair to slowly but surely absorb moisture.&#8221;\n<\/p>\n<p id=\"mntl-sc-block_53-0\" class=\"comp mntl-sc-block beauty-sc-block-html mntl-sc-block-html\"> Lastly, she adds, &#8220;Sometimes, when people decide to embrace their natural texture, they assume it will be easier. Although natural is healthier, it&#8217;s not necessarily easier\u2014in fact, for some, it may imply more work. Rest assured, the work is worth it for happier, healthier hair. You get out of it what you put into it.&#8221;\n<\/p>\n<div id=\"mntl-sc-block_55-0\" class=\"comp mntl-sc-block beauty-sc-block-featuredlink mntl-sc-block-featuredlink mntl-block upnext-link\"><span class=\"link__wrapper\">How to Determine Your Hair Porosity, According to Pros<\/span><\/div>\n<p id=\"mntl-sc-block_57-0\" class=\"comp mntl-sc-block beauty-sc-block-html mntl-sc-block-html\"> \u00a0\n<\/p>\n<\/div>\n<div id=\"citation-sources_1-0\" class=\"comp citation-sources mntl-article-sources mntl-expandable-block u-article-styles\" data-scroll-offset=\"70\">\n<div class=\"loc toggle-content\">\n<div id=\"mntl-article-sources__wrapper_1-0\" class=\"comp mntl-article-sources__wrapper mntl-block\" data-click-tracked=\"true\"><span id=\"mntl-article-sources__heading_1-0\" class=\"comp mntl-article-sources__heading mntl-text-block\">Article Sources<\/span><\/div>\n<\/div>\n<div class=\"loc expandable-content\">\n<div id=\"citation-sources__text_1-0\" class=\"comp citation-sources__text mntl-text-block\">Byrdie takes every opportunity to use high-quality sources, including peer-reviewed studies, to support the facts within our articles. Read our editorial guidelines to learn more about how we keep our content accurate, reliable and trustworthy.<\/div>\n<div id=\"mntl-article-sources__citation-sources_1-0\" class=\"comp mntl-article-sources__citation-sources mntl-citation-sources mntl-sources\" data-tracking-container=\"true\">\n<ol class=\"mntl-sources__content\">\n<li class=\"mntl-sources__source\" id=\"citation-2\">\n<p>Lin TK, Zhong L, Santiago JL. Anti-inflammatory and skin barrier repair effects of topical application of some plant oils.\u00a0<em>Int J Mol Sci<\/em>. 2017;19(1):70. doi:10.3390\/ijms19010070<\/p>\n<\/li>\n<li class=\"mntl-sources__source\" id=\"citation-1\">\n<p>Gavazzoni Dias MFR. Pro and contra of cleansing conditioners.\u00a0<em>Skin Appendage Disord<\/em>. 2019;5(3):131-134. doi:10.1159\/000493588<\/p>\n<\/li>\n<\/ol>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"loc article-post-content\">\n<div id=\"beauty-breadcrumbs--chips_1-0\" class=\"comp beauty-breadcrumbs--chips mntl-universal-breadcrumbs--chips mntl-block\">\n<div id=\"mntl-breadcrumbs__read-more_1-0\" class=\"comp mntl-breadcrumbs__read-more mntl-text-block text-title-100\">Read more:<\/div>\n<ul id=\"mntl-universal-breadcrumbs_1-0\" class=\"comp mntl-universal-breadcrumbs mntl-block text-label-300 breadcrumbs\" data-tracking-container=\"true\">\n<li id=\"mntl-breadcrumbs__item_1-0\" class=\"comp mntl-breadcrumbs__item mntl-block\"><span class=\"link__wrapper\">Hair<\/span><\/li>\n<li id=\"mntl-breadcrumbs__item_2-0\" class=\"comp mntl-breadcrumbs__item mntl-block\"><span class=\"link__wrapper\">Haircare<\/span><\/li>\n<\/ul>\n<\/div>\n<\/div>\n<\/article>\n<div id=\"recirc_1-0\" 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src=\"https:\/\/analyse.optim.biz\/wp-content\/uploads\/2026\/02\/shea-butter-for-hair-2-a2b5c02afcc14cc9893ce7c74411e1f6-3.webp\" title=\"shea-butter-for-hair-2-a2b5c02afcc14cc9893ce7c74411e1f6-3\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/analyse.optim.biz\/wp-content\/uploads\/2026\/02\/shea-butter-for-hair-2-a2b5c02afcc14cc9893ce7c74411e1f6-3.webp\" width=\"300\" height=\"240\" class=\"img--noscript card__img universal-image__image\" alt=\"A woman with curly hair touching her head\" title=\"shea-butter-for-hair-2-a2b5c02afcc14cc9893ce7c74411e1f6-3\"><\/div>\n<\/div>\n<\/div>\n<div class=\"card__content \"><span class=\"card__title\"><span class=\"card__title-text \">Shea Butter Has Tons of Benefits for Your Hair\u2014And, You Can Make Your Own at Home<\/span><\/span><\/div>\n<\/li>\n<li id=\"card-list__item_10-0\" class=\"comp card-list__item mntl-block \">\n<div class=\"loc card__top\">\n<div class=\"card__media mntl-image card__media universal-image__container\">\n<div class=\"img-placeholder\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"240\" alt=\"Different tester\u2019s hands dispensing shampoos for oily hair, including N\u00e9cessaire The Shampoo and K\u00e9rastase Specifique Bain Divalent Balancing Shampoo\" class=\"lazyload card__img universal-image__image\" src=\"https:\/\/analyse.optim.biz\/wp-content\/uploads\/2026\/02\/byr-tier-3-primary-best-shampoos-oily-hair-ahuang-124-95f2425ab71e4f22b7d26dd872b68b82-4.webp\" title=\"byr-tier-3-primary-best-shampoos-oily-hair-ahuang-124-95f2425ab71e4f22b7d26dd872b68b82-4\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/analyse.optim.biz\/wp-content\/uploads\/2026\/02\/byr-tier-3-primary-best-shampoos-oily-hair-ahuang-124-95f2425ab71e4f22b7d26dd872b68b82-4.webp\" width=\"300\" height=\"240\" class=\"img--noscript card__img universal-image__image\" alt=\"Different tester\u2019s hands dispensing shampoos for oily hair, including N\u00e9cessaire The Shampoo and K\u00e9rastase Specifique Bain Divalent Balancing Shampoo\" title=\"byr-tier-3-primary-best-shampoos-oily-hair-ahuang-124-95f2425ab71e4f22b7d26dd872b68b82-4\"><\/div>\n<\/div>\n<\/div>\n<div class=\"card__content \"><span class=\"card__title\"><span class=\"card__title-text \">The 12 Best Shampoos for Oily Hair That Target Grease and Promote Moisture<\/span><\/span><\/div>\n<\/li>\n<li id=\"card-list__item_11-0\" class=\"comp card-list__item mntl-block \">\n<div class=\"loc card__top\">\n<div class=\"card__media mntl-image card__media universal-image__container\">\n<div class=\"img-placeholder\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"240\" alt=\"Two women demonstrating root touchup products on their hair with one applying a liquid and the other using a stick application\" class=\"lazyload card__img universal-image__image\" src=\"https:\/\/analyse.optim.biz\/wp-content\/uploads\/2026\/02\/byr-best-root-touch-up-products-tout-recirc-1a57c7ed81dd4ba3bb49865ba29bff32-4.webp\" title=\"byr-best-root-touch-up-products-tout-recirc-1a57c7ed81dd4ba3bb49865ba29bff32-4\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/analyse.optim.biz\/wp-content\/uploads\/2026\/02\/byr-best-root-touch-up-products-tout-recirc-1a57c7ed81dd4ba3bb49865ba29bff32-4.webp\" width=\"300\" height=\"240\" class=\"img--noscript card__img universal-image__image\" alt=\"Two women demonstrating root touchup products on their hair with one applying a liquid and the other using a stick application\" title=\"byr-best-root-touch-up-products-tout-recirc-1a57c7ed81dd4ba3bb49865ba29bff32-4\"><\/div>\n<\/div>\n<\/div>\n<div class=\"card__content \"><span class=\"card__title\"><span class=\"card__title-text \">The 8 Best Root Touch-Up Products for Seamlessly Concealing Grays and Regrowth<\/span><\/span><\/div>\n<\/li>\n<li id=\"card-list__item_12-0\" class=\"comp card-list__item mntl-block \">\n<div class=\"loc card__top\">\n<div class=\"card__media mntl-image card__media universal-image__container\">\n<div class=\"img-placeholder\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"240\" alt=\"Closeup of long wavy hair lying against a surface\" class=\"lazyload card__img universal-image__image\" src=\"https:\/\/analyse.optim.biz\/wp-content\/uploads\/2026\/02\/wet-hair-2-ad5c59d95ef445689e073deb2d116eb9-2.webp\" title=\"wet-hair-2-ad5c59d95ef445689e073deb2d116eb9-2\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/analyse.optim.biz\/wp-content\/uploads\/2026\/02\/wet-hair-2-ad5c59d95ef445689e073deb2d116eb9-2.webp\" width=\"300\" height=\"240\" class=\"img--noscript card__img universal-image__image\" alt=\"Closeup of long wavy hair lying against a surface\" title=\"wet-hair-2-ad5c59d95ef445689e073deb2d116eb9-2\"><\/div>\n<\/div>\n<\/div>\n<div class=\"card__content \"><span class=\"card__title\"><span class=\"card__title-text \">Why You Should Never Skip Conditioner<\/span><\/span><\/div>\n<\/li>\n<li id=\"card-list__item_13-0\" class=\"comp card-list__item mntl-block \">\n<div class=\"loc card__top\">\n<div class=\"card__media mntl-image card__media universal-image__container\">\n<div class=\"img-placeholder\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"240\" alt=\"Meghan Thee Stallion, Chase Infiniti, Winnie Harlow\" class=\"lazyload card__img universal-image__image\" src=\"https:\/\/analyse.optim.biz\/wp-content\/uploads\/2026\/02\/byr_curlrecovery_leadrecirc-251b271e94604e66b4d124b006bfc572-1.webp\" title=\"byr_curlrecovery_leadrecirc-251b271e94604e66b4d124b006bfc572-1\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/analyse.optim.biz\/wp-content\/uploads\/2026\/02\/byr_curlrecovery_leadrecirc-251b271e94604e66b4d124b006bfc572-1.webp\" width=\"300\" height=\"240\" class=\"img--noscript card__img universal-image__image\" alt=\"Meghan Thee Stallion, Chase Infiniti, Winnie Harlow\" title=\"byr_curlrecovery_leadrecirc-251b271e94604e66b4d124b006bfc572-1\"><\/div>\n<\/div>\n<\/div>\n<div class=\"card__content \"><span class=\"card__title\"><span class=\"card__title-text \">The New Rules of Curl Recovery<\/span><\/span><\/div>\n<\/li>\n<li id=\"card-list__item_14-0\" class=\"comp card-list__item mntl-block \">\n<div class=\"loc card__top\">\n<div class=\"card__media mntl-image card__media universal-image__container\">\n<div class=\"img-placeholder\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"240\" alt=\"Before and after composite image showing scalp and hair regrowth results for hair loss treatment\" class=\"lazyload card__img universal-image__image\" src=\"https:\/\/analyse.optim.biz\/wp-content\/uploads\/2026\/02\/byr-best-hair-loss-treatments-tout-recirc-0518c9b46e2940c28eb584083a2c7307-3.webp\" title=\"byr-best-hair-loss-treatments-tout-recirc-0518c9b46e2940c28eb584083a2c7307-3\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/analyse.optim.biz\/wp-content\/uploads\/2026\/02\/byr-best-hair-loss-treatments-tout-recirc-0518c9b46e2940c28eb584083a2c7307-3.webp\" width=\"300\" height=\"240\" class=\"img--noscript card__img universal-image__image\" alt=\"Before and after composite image showing scalp and hair regrowth results for hair loss treatment\" title=\"byr-best-hair-loss-treatments-tout-recirc-0518c9b46e2940c28eb584083a2c7307-3\"><\/div>\n<\/div>\n<\/div>\n<div class=\"card__content \"><span class=\"card__title\"><span class=\"card__title-text \">The 7 Best Hair Loss Treatments That Boosted Hair Growth During Testing<\/span><\/span><\/div>\n<\/li>\n<li id=\"card-list__item_15-0\" class=\"comp card-list__item mntl-block \">\n<div class=\"loc card__top\">\n<div class=\"card__media mntl-image card__media universal-image__container\">\n<div class=\"img-placeholder\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"240\" alt=\"A person having their hair styled with a hand holding a hair cream container nearby\" class=\"lazyload card__img universal-image__image\" src=\"https:\/\/analyse.optim.biz\/wp-content\/uploads\/2026\/02\/cecred-3da0a6d3cece4dad81007bea869d62ea-2.webp\" title=\"cecred-3da0a6d3cece4dad81007bea869d62ea-2\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/analyse.optim.biz\/wp-content\/uploads\/2026\/02\/cecred-3da0a6d3cece4dad81007bea869d62ea-2.webp\" width=\"300\" height=\"240\" class=\"img--noscript card__img universal-image__image\" alt=\"A person having their hair styled with a hand holding a hair cream container nearby\" title=\"cecred-3da0a6d3cece4dad81007bea869d62ea-2\"><\/div>\n<\/div>\n<\/div>\n<div class=\"card__content \"><span class=\"card__title\"><span class=\"card__title-text \">Hair Balms are Back and Better Than Ever<\/span><\/span><\/div>\n<\/li>\n<li id=\"card-list__item_16-0\" class=\"comp card-list__item mntl-block \">\n<div class=\"loc card__top\">\n<div class=\"card__media mntl-image card__media universal-image__container\">\n<div class=\"img-placeholder\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"240\" alt=\"Side-by-side photo of two testers with curly hair, one with black curls and the other with blonde curls, each holding the curl cream they used while showing their hair results.\" class=\"lazyload card__img universal-image__image\" src=\"https:\/\/analyse.optim.biz\/wp-content\/uploads\/2026\/02\/curl-creams-tout-recirc-e1b0e843fcdf48e8804cd38ce05595ec-2.webp\" title=\"curl-creams-tout-recirc-e1b0e843fcdf48e8804cd38ce05595ec-2\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/analyse.optim.biz\/wp-content\/uploads\/2026\/02\/curl-creams-tout-recirc-e1b0e843fcdf48e8804cd38ce05595ec-2.webp\" width=\"300\" height=\"240\" class=\"img--noscript card__img universal-image__image\" alt=\"Side-by-side photo of two testers with curly hair, one with black curls and the other with blonde curls, each holding the curl cream they used while showing their hair results.\" title=\"curl-creams-tout-recirc-e1b0e843fcdf48e8804cd38ce05595ec-2\"><\/div>\n<\/div>\n<\/div>\n<div class=\"card__content \"><span class=\"card__title\"><span class=\"card__title-text \">We Found the 11 Best Curl Creams for Every Curl Type, Tested &amp; Reviewed<\/span><\/span><\/div>\n<\/li>\n<\/ul>\n<\/div>\n<p><\/main><\/p>\n<article id=\"beauty-article--sc_1-0\" class=\"comp beauty-article--sc beauty-article mntl-article mntl-article--two-column-right-rail sc-ad-container\" data-tracking-container=\"true\">\n<div class=\"loc article-header\">\n<div id=\"article-header_1-0\" class=\"comp article-header mntl-block article-top\">\n<h1 id=\"article-heading_1-0\" class=\"comp article-heading mntl-text-block\">Low Porosity Hair, Explained: What It Is and How to Keep It Hydrated<\/h1>\n<p id=\"article-subheading_1-0\" class=\"comp article-subheading mntl-text-block\">Experts break it down.<\/p>\n<div id=\"article-meta_1-0\" class=\"comp article-meta mntl-article-meta mntl-block\" data-tracking-container=\"true\">\n<div id=\"bylines_1-0\" class=\"comp bylines beauty-bylines mntl-bylines\" data-tracking-container=\"true\">\n<div id=\"mntl-bylines__group_1-0\" class=\"comp mntl-bylines__group mntl-block mntl-bylines__group--author\">\n<div id=\"mntl-bylines__item_1-0\" class=\"comp mntl-bylines__item mntl-attribution__item \"><span class=\"mntl-attribution__item-descriptor\">By<\/span><\/p>\n<div data-tooltip=\"Bianca is a contributing writer for Byrdie specializing in natural hair and skincare. You can find her work in xoNecole, The Everygirl, POPSUGAR, Travel Noire, and more.\u00a0\" data-inline-tooltip=\"true\"> Bianca Lambert<\/p>\n<div id=\"mntl-author-tooltip_1-0\" class=\"comp mntl-author-tooltip mntl-tooltip mntl-group\">\n<div class=\"mntl-author-tooltip__top \">\n<div class=\"mntl-author-tooltip__image-wrapper\">\n<div class=\"img-placeholder\"><img loading=\"lazy\" decoding=\"async\" width=\"200\" height=\"200\" alt=\"Bianca's Photo\" class=\"lazyload mntl-author-tooltip__image mntl-image universal-image__image\" src=\"https:\/\/analyse.optim.biz\/wp-content\/uploads\/2026\/02\/screenshot2019-05-04at2-53-40am-68e2f50ed7644491b4660f76a496564d.webp\" title=\"screenshot2019-05-04at2-53-40am-68e2f50ed7644491b4660f76a496564d\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/analyse.optim.biz\/wp-content\/uploads\/2026\/02\/screenshot2019-05-04at2-53-40am-68e2f50ed7644491b4660f76a496564d.webp\" width=\"200\" height=\"200\" class=\"img--noscript mntl-author-tooltip__image mntl-image universal-image__image\" alt=\"Bianca's Photo\" title=\"screenshot2019-05-04at2-53-40am-68e2f50ed7644491b4660f76a496564d\"><\/div>\n<\/div>\n<div id=\"mntl-author-tooltip__name_1-0\" class=\"comp mntl-author-tooltip__name mntl-attribution__item \">\nBianca Lambert\n<\/div>\n<div id=\"mntl-author-tooltip__social-nav_1-0\" class=\"comp mntl-author-tooltip__social-nav beauty-social-nav mntl-social-nav social-nav--tooltip\" data-tracking-container=\"true\">\n<ul class=\"social-nav__list\">\n<li class=\"social-nav__item social-nav__item--instagram\">\n<li class=\"social-nav__item social-nav__item--linkedin\"><\/ul>\n<\/div>\n<div class=\"mntl-author-tooltip__bio\">\nBianca is a contributing writer for Byrdie specializing in natural hair and skincare. You can find her work in xoNecole, The Everygirl, POPSUGAR, Travel Noire, and more.\u00a0\n<\/div>\n<\/div>\n<div class=\"mntl-author-tooltip__bottom\">\nByrdie&#8217;s Editorial Guidelines\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div id=\"mntl-bylines__item_2-0\" class=\"comp mntl-bylines__item mntl-attribution__item mntl-attribution__item--has-date\"><span class=\"mntl-attribution__item-descriptor\">and<\/span><\/p>\n<div data-tooltip=\"&lt;p&gt;Abby is a former associate editor at Byrdie and has three years of experience in beauty editorial.&lt;\/p&gt;\" data-inline-tooltip=\"true\"> Abby Dupes<\/p>\n<div id=\"mntl-author-tooltip_2-0\" class=\"comp mntl-author-tooltip mntl-tooltip mntl-group\">\n<div class=\"mntl-author-tooltip__top \">\n<div class=\"mntl-author-tooltip__image-wrapper\">\n<div class=\"img-placeholder\"><img loading=\"lazy\" decoding=\"async\" width=\"200\" height=\"200\" alt=\"Byrdie associate editor Abby Dupes\" class=\"lazyload mntl-author-tooltip__image mntl-image universal-image__image\" src=\"https:\/\/analyse.optim.biz\/wp-content\/uploads\/2026\/02\/abbydupesheadshot-952b509113e54977aa4f5bd54644cd90-2.webp\" title=\"abbydupesheadshot-952b509113e54977aa4f5bd54644cd90-2\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/analyse.optim.biz\/wp-content\/uploads\/2026\/02\/abbydupesheadshot-952b509113e54977aa4f5bd54644cd90-2.webp\" width=\"200\" height=\"200\" class=\"img--noscript mntl-author-tooltip__image mntl-image universal-image__image\" alt=\"Byrdie associate editor Abby Dupes\" title=\"abbydupesheadshot-952b509113e54977aa4f5bd54644cd90-2\"><\/div>\n<\/div>\n<div id=\"mntl-author-tooltip__name_2-0\" class=\"comp mntl-author-tooltip__name mntl-attribution__item \">\nAbby Dupes\n<\/div>\n<div class=\"mntl-author-tooltip__bio\">\n<p>Abby is a former associate editor at Byrdie and has three years of experience in beauty editorial.<\/p>\n<\/div>\n<\/div>\n<div class=\"mntl-author-tooltip__bottom\">\nByrdie&#8217;s Editorial Guidelines\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"mntl-attribution__item-date\">Published on January 16, 2026 09:39AM<\/div>\n<\/div>\n<div id=\"mntl-bylines__group_2-0\" class=\"comp mntl-bylines__group mntl-block mntl-bylines__group--beauty_wellness_reviewer\">\n<div id=\"mntl-bylines__item_3-0\" class=\"comp mntl-bylines__item mntl-attribution__item \"><span class=\"mntl-attribution__item-descriptor\">Reviewed by<\/span><\/p>\n<div data-tooltip='Sophia Emmanuel is an IAT-certified trichologist and licensed cosmetologist based in New York.\u00a0She owns and operates the &lt;a href=\"https:\/\/crownworthy.com\/\" data-component=\"link\" data-source=\"inlineLink\" data-type=\"externalLink\" data-ordinal=\"1\"&gt;Crown Worthy&lt;\/a&gt; beauty salon in New York City.\u00a0\u00a0' data-inline-tooltip=\"true\"> Sophia Emmanuel<\/p>\n<div id=\"mntl-author-tooltip_3-0\" class=\"comp mntl-author-tooltip mntl-tooltip mntl-group\">\n<div class=\"mntl-author-tooltip__top \">\n<div class=\"mntl-author-tooltip__image-wrapper\">\n<div class=\"img-placeholder\"><img loading=\"lazy\" decoding=\"async\" width=\"200\" height=\"200\" alt=\"Sophia Emmanuel\" class=\"lazyload mntl-author-tooltip__image mntl-image universal-image__image\" src=\"https:\/\/analyse.optim.biz\/wp-content\/uploads\/2026\/02\/sophiaemmanuelbio-9c9762ff738b4d6485287f37b9f6a821-4.webp\" title=\"sophiaemmanuelbio-9c9762ff738b4d6485287f37b9f6a821-4\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/analyse.optim.biz\/wp-content\/uploads\/2026\/02\/sophiaemmanuelbio-9c9762ff738b4d6485287f37b9f6a821-4.webp\" width=\"200\" height=\"200\" class=\"img--noscript mntl-author-tooltip__image mntl-image universal-image__image\" alt=\"Sophia Emmanuel\" title=\"sophiaemmanuelbio-9c9762ff738b4d6485287f37b9f6a821-4\"><\/div>\n<\/div>\n<div id=\"mntl-author-tooltip__name_3-0\" class=\"comp mntl-author-tooltip__name mntl-attribution__item \"><span class=\"mntl-attribution__item-descriptor\">Reviewed by<\/span><br \/>\nSophia Emmanuel\n<\/div>\n<div class=\"mntl-author-tooltip__bio\">\nSophia Emmanuel is an IAT-certified trichologist and licensed cosmetologist based in New York.\u00a0She owns and operates the Crown Worthy beauty salon in New York City.\u00a0\u00a0\n<\/div>\n<\/div>\n<div class=\"mntl-author-tooltip__bottom\">\nAbout Byrdie&#8217;s Beauty &amp; Wellness Board\n<\/div>\n<\/div>\n<\/div>\n<div class=\"mntl-attribution__item-postscript\">Trichologist<\/div>\n<\/div>\n<\/div>\n<div id=\"mntl-bylines__group_3-0\" class=\"comp mntl-bylines__group mntl-block mntl-bylines__group--fact_checker\">\n<div id=\"mntl-bylines__item_4-0\" class=\"comp mntl-bylines__item mntl-attribution__item \"><span class=\"mntl-attribution__item-descriptor\">Fact checked by<\/span><\/p>\n<div data-tooltip=\"Michelle Regalado is a seasoned editor, fact-checker, and content strategist with expertise in women's lifestyle news.\" data-inline-tooltip=\"true\"> Michelle Regalado<\/p>\n<div id=\"mntl-author-tooltip_4-0\" class=\"comp mntl-author-tooltip mntl-tooltip mntl-group\">\n<div class=\"mntl-author-tooltip__top \">\n<div class=\"mntl-author-tooltip__image-wrapper\">\n<div class=\"img-placeholder\"><img loading=\"lazy\" decoding=\"async\" width=\"200\" height=\"200\" alt=\"Michelle Regalado\" class=\"lazyload mntl-author-tooltip__image mntl-image universal-image__image\" src=\"https:\/\/analyse.optim.biz\/wp-content\/uploads\/2026\/02\/regalado_headshot-549f57cef4b54ea193d6181c1e97d226-1.webp\" title=\"regalado_headshot-549f57cef4b54ea193d6181c1e97d226-1\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/analyse.optim.biz\/wp-content\/uploads\/2026\/02\/regalado_headshot-549f57cef4b54ea193d6181c1e97d226-1.webp\" width=\"200\" height=\"200\" class=\"img--noscript mntl-author-tooltip__image mntl-image universal-image__image\" alt=\"Michelle Regalado\" title=\"regalado_headshot-549f57cef4b54ea193d6181c1e97d226-1\"><\/div>\n<\/div>\n<div id=\"mntl-author-tooltip__name_4-0\" class=\"comp mntl-author-tooltip__name mntl-attribution__item \"><span class=\"mntl-attribution__item-descriptor\">Fact checked by<\/span><br \/>\nMichelle Regalado\n<\/div>\n<div id=\"mntl-author-tooltip__social-nav_4-0\" class=\"comp mntl-author-tooltip__social-nav beauty-social-nav mntl-social-nav social-nav--tooltip\" data-tracking-container=\"true\">\n<ul class=\"social-nav__list\">\n<li class=\"social-nav__item social-nav__item--x\"><\/ul>\n<\/div>\n<div class=\"mntl-author-tooltip__bio\">\nMichelle Regalado is a seasoned editor, fact-checker, and content strategist with expertise in women&#8217;s lifestyle news.\n<\/div>\n<\/div>\n<div class=\"mntl-author-tooltip__bottom\">\nLEARN ABOUT BYRDIE&#8217;S EDITORIAL GUIDELINES\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"loc article-content\">\n<div id=\"article__broad-video-jw_1-0\" class=\"comp article__broad-video-jw mntl-jwplayer-broad mntl-block is-hidden\" data-pixel-depth=\"100\">\n<div id=\"mntl-jwplayer-broad__title_1-0\" class=\"comp mntl-jwplayer-broad__title mntl-block\"><button id=\"mntl-jwplayer-broad__title-icon--close_1-0\" class=\"comp mntl-jwplayer-broad__title-icon--close mntl-block text-label-100\" data-click-tracked=\"false\"><span id=\"mntl-text-block_2-0\" class=\"comp mntl-text-block\">Close<\/span><\/button><\/div>\n<\/div>\n<div id=\"mntl-block_2-0\" class=\"comp mntl-block article__body right-rail\">\n<figure id=\"mntl-universal-primary-image_1-0\" class=\"comp mntl-universal-primary-image primary-image\" data-tracking-container=\"true\">\n<div class=\"primary-image__media\">\n<div class=\"img-placeholder\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/analyse.optim.biz\/wp-content\/uploads\/2026\/02\/hair-porosity-1-2e71d5b81ea749ac924d4b8157c5e81b-3.webp\" width=\"1280\" height=\"960\" alt=\"Person with curly hair side view demonstrating hair texture\" class=\" primary-image__image mntl-primary-image--blurry\" title=\"hair-porosity-1-2e71d5b81ea749ac924d4b8157c5e81b-3\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/analyse.optim.biz\/wp-content\/uploads\/2026\/02\/hair-porosity-1-2e71d5b81ea749ac924d4b8157c5e81b-3.webp\" width=\"1280\" height=\"960\" class=\"loaded primary-img--noscript primary-image__image mntl-primary-image--blurry\" alt=\"Person with curly hair side view demonstrating hair texture\" title=\"hair-porosity-1-2e71d5b81ea749ac924d4b8157c5e81b-3\"><\/div>\n<\/div><figcaption id=\"primary-image__figcap_1-0\" class=\"comp primary-image__figcap mntl-figure-caption figure-article-caption\"><span class=\"figure-article-caption-owner\"><\/p>\n<p>Death to Stock<\/p>\n<p><\/span><\/figcaption><\/figure>\n<div id=\"mntl-sc-page_1-0\" class=\"comp mntl-sc-page mntl-block\" data-sc-sticky-offset=\"125\" data-sc-ad-label-height=\"16\" data-sc-ad-track-spacing=\"100\" data-sc-min-track-height=\"250\" data-sc-max-track-height=\"600\" data-sc-breakpoint=\"50em\" data-sc-load-immediate=\"5\" data-sc-content-positions=\"[1, 1250, 1, 1, 1, 1, 1, 1, 1]\" data-bind-scroll-on-start=\"true\">\n<div id=\"mntl-sc-block_1-0\" class=\"comp mntl-sc-block beauty-sc-block-callout--finalverdict beauty-sc-block-callout mntl-sc-block-callout mntl-block theme-finalverdict\" data-tracking-id=\"mntl-sc-block-callout\" data-tracking-container=\"true\">\n<p id=\"mntl-sc-block-callout-heading_1-0\" class=\"comp mntl-sc-block-callout-heading mntl-text-block\">Key Takeaways<\/p>\n<div id=\"mntl-sc-block-callout-body_1-0\" class=\"comp mntl-sc-block-callout-body mntl-text-block\">\n<ul>\n<li>Low porosity hair has a tightly sealed cuticle, making it resistant to absorbing water and treatments.<\/li>\n<li>Use heat to open the cuticle and improve absorption of moisturizing hair products. <\/li>\n<li>Incorporate protein treatments in your routine to strengthen low porosity hair and reduce breakage.<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<p id=\"mntl-sc-block_2-0\" class=\"comp mntl-sc-block beauty-sc-block-html mntl-sc-block-html\"> There may be more at play with your damaged hair than the obvious: achieving healthy hair runs deeper than simply choosing the right ingredients, styling tools, and products to keep your strands hydrated. While texture and density are key qualities in determining a proper routine for your hair, porosity could be the other major key missing from the equation.\n<\/p>\n<p id=\"mntl-sc-block_4-0\" class=\"comp mntl-sc-block beauty-sc-block-html mntl-sc-block-html\"> If you didn\u2019t realize already, moisture plays a critical role in overall hair health. For context, low porosity hair can retain moisture for considerably long periods (hence why your hair may take forever to dry, with or without a blow dryer. But the caveat? Its extremely flat cuticle layer also makes low porosity hair less likely to absorb water and nourishing hair treatments.\n<\/p>\n<p id=\"mntl-sc-block_6-0\" class=\"comp mntl-sc-block beauty-sc-block-html mntl-sc-block-html\"> Low porosity hair can honestly feel like a double-edged sword to deal with, but there\u2019s good news\u2014we know just who to ask about maximizing its potential. For the ins and outs of caring for low porosity hair, we turned to top dermatologist Joyce Park, MD, as well as curl specialists Marissa Rullan of Studio 210 and Leigh Hardges from Maxine Salon. Below, learn everything from how to find out your hair&#8217;s porosity to what to look for on product labels.<\/p>\n<p id=\"mntl-sc-block_8-0\" class=\"comp mntl-sc-block beauty-sc-block-html mntl-sc-block-html\"><strong>Keep reading for their tips on how to care for low-porosity hair on wash day and beyond.<\/strong><\/p>\n<div id=\"mntl-sc-block_10-0\" class=\"comp mntl-sc-block beauty-sc-block-callout--meetourexpert beauty-sc-block-callout mntl-sc-block-callout mntl-block theme-meetourexpert\" data-tracking-id=\"mntl-sc-block-callout\" data-tracking-container=\"true\">\n<p id=\"mntl-sc-block-callout-heading_2-0\" class=\"comp mntl-sc-block-callout-heading mntl-text-block\">Meet the Experts<\/p>\n<div id=\"mntl-sc-block-callout-body_2-0\" class=\"comp mntl-sc-block-callout-body mntl-text-block\">\n<ul>\n<li>Joyce Park, MD, is a board-certified dermatologist based in Washington, founder of teledermatology clinic\u00a0Skin Refinery, and creator of\u00a0Tea With MD.<\/li>\n<li>Marissa Rullan is a curly hair specialist and Innersense educator based in the Bay Area.<\/li>\n<li>Leigh Hardges is a stylist at\u00a0Maxine Salon in Chicago.<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<h2 id=\"mntl-sc-block_11-0\" class=\"comp mntl-sc-block beauty-sc-block-heading mntl-sc-block-heading\"><span class=\"mntl-sc-block-heading__text text-title-300\"> What Is Hair Porosity? <\/span><\/h2>\n<p id=\"mntl-sc-block_12-0\" class=\"comp mntl-sc-block beauty-sc-block-html mntl-sc-block-html\"> Hair porosity refers to how your hair retains and absorbs moisture based on how open or closed the cuticle layer (the outermost layer) is. To better understand the role of the cuticle in hair porosity, here&#8217;s what you need to know about the structure of hair strands: &#8220;The medulla is the innermost layer of the hair shaft, and it is composed of cells and air spaces and is generally more prominent in thick or coarse hair,&#8221; Park says, &#8220;The cortex is the middle layer and makes up the majority of the hair structure. It contains keratin, which provides strength and elasticity to the hair. The cortex also determines the color and texture of the hair.&#8221;\n<\/p>\n<p id=\"mntl-sc-block_14-0\" class=\"comp mntl-sc-block beauty-sc-block-html mntl-sc-block-html\"> &#8220;Then we have the outermost layer of the hair shaft, the cuticle, which consists of overlapping, transparent cells that resemble shingles on a roof,&#8221; Park continues, &#8220;The cuticle serves as a protective layer for the cortex, preventing damage and contributing to the hair&#8217;s overall strength and shine. The health and condition of the cuticle also affects the hair&#8217;s texture and appearance.&#8221;\n<\/p>\n<h2 id=\"mntl-sc-block_16-0\" class=\"comp mntl-sc-block beauty-sc-block-heading mntl-sc-block-heading\"><span class=\"mntl-sc-block-heading__text text-title-300\"> What Is Low Porosity Hair? <\/span><\/h2>\n<p id=\"mntl-sc-block_17-0\" class=\"comp mntl-sc-block beauty-sc-block-html mntl-sc-block-html\"> Low\u00a0porosity\u00a0hair has a tightly sealed cuticle layer, making it resistant to moisture absorption. &#8220;Such hair often feels smooth and can seem resistant to styling products,&#8221; says Park.\n<\/p>\n<p id=\"mntl-sc-block_19-0\" class=\"comp mntl-sc-block beauty-sc-block-html mntl-sc-block-html\"> &#8220;Low\u00a0porosity\u00a0[hair] is typically caused by genetics, while high\u00a0porosity\u00a0can result from environmental damage, excessive heat styling, or chemical treatments,&#8221; she adds.\n<\/p>\n<h2 id=\"mntl-sc-block_21-0\" class=\"comp mntl-sc-block beauty-sc-block-heading mntl-sc-block-heading\"><span class=\"mntl-sc-block-heading__text text-title-300\"> How to Determine Your Hair&#8217;s Porosity <\/span><\/h2>\n<p id=\"mntl-sc-block_22-0\" class=\"comp mntl-sc-block beauty-sc-block-html mntl-sc-block-html\"> Curious how to test your own hair&#8217;s absorbency abilities? Park and Rullan say there are two at-home ways to do so: the sink or float test and the spray bottle test. &#8220;These tests provide insights into your hair&#8217;s ability to absorb and retain moisture, helping you tailor your hair care routine accordingly,&#8221; Park says, &#8220;[But] keep in mind that individual hair strands may vary, so it&#8217;s helpful to consider the overall pattern across your hair.&#8221;<em><br \/><\/em><\/p>\n<h3 id=\"mntl-sc-block_24-0\" class=\"comp mntl-sc-block beauty-sc-block-subheading mntl-sc-block-subheading\"><span class=\"mntl-sc-block-subheading__text\"> Try the Sink or Float Test <\/span><\/h3>\n<p id=\"mntl-sc-block_25-0\" class=\"comp mntl-sc-block beauty-sc-block-html mntl-sc-block-html\"> For the sink or float test, &#8220;You&#8217;ll take a few strands of hair that have naturally shed from the scalp and fill a cup with room temperature water,&#8221; Rullan explains. &#8220;Remember, hot water opens the cuticle, so if the water is too hot, regardless of the porosity, the hair will load up with water and sink. High porosity is so open; the hair will quickly absorb water and then sink to the bottom of the cup. Low porosity hair is water-resistant, which means the strands will remain floating towards the surface even after a few minutes. If the hair hovers in the middle, you have medium or (normal) porosity which absorbs and retains water well.&#8221;\u00a0\n<\/p>\n<h3 id=\"mntl-sc-block_27-0\" class=\"comp mntl-sc-block beauty-sc-block-subheading mntl-sc-block-subheading\"><span class=\"mntl-sc-block-subheading__text\"> Test with a Spray Bottle <\/span><\/h3>\n<p id=\"mntl-sc-block_28-0\" class=\"comp mntl-sc-block beauty-sc-block-html mntl-sc-block-html\"> Next is the spray bottle test. &#8220;You&#8217;ll simply mist a section of the hair and closely watch,&#8221; instructs Rullan. &#8220;If the water beads up and fails to absorb, maybe even rolling off of the hair after a few minutes, you have low porosity hair.&#8221;<\/p>\n<h2 id=\"mntl-sc-block_30-0\" class=\"comp mntl-sc-block beauty-sc-block-heading mntl-sc-block-heading\"><span class=\"mntl-sc-block-heading__text text-title-300\"> How to Take Care of Low Porosity Hair <\/span><\/h2>\n<p id=\"mntl-sc-block_31-0\" class=\"comp mntl-sc-block beauty-sc-block-html mntl-sc-block-html\"> &#8220;Understanding your hair&#8217;s\u00a0porosity\u00a0helps tailor a hair care routine,&#8221; according to Park. Here are the best tips on how to take care of low porosity hair, according to the experts:\n<\/p>\n<h3 id=\"mntl-sc-block_33-0\" class=\"comp mntl-sc-block beauty-sc-block-subheading mntl-sc-block-subheading\"><span class=\"mntl-sc-block-subheading__text\"> Moisturize Using Emollient Ingredients <\/span><\/h3>\n<p id=\"mntl-sc-block_34-0\" class=\"comp mntl-sc-block beauty-sc-block-html mntl-sc-block-html\"> &#8220;High-porosity hair frizzes out when exposed to humidity and becomes more easily dry and brittle in dry heat,&#8221; says Rullan. &#8220;Low porosity hair is moisture resistant because the cuticle layer is so tightly closed that water molecules are too big to penetrate the hair shaft.&#8221; In other words, moisture is the key no matter your hair&#8217;s porosity; look for products with emollients\u2014or softening ingredients such as aloe, avocado, jojoba oil, and shea butter\u2014as they form a barrier and trap water.<\/p>\n<h3 id=\"mntl-sc-block_36-0\" class=\"comp mntl-sc-block beauty-sc-block-subheading mntl-sc-block-subheading\"><span class=\"mntl-sc-block-subheading__text\"> Embrace Warmth <\/span><\/h3>\n<p id=\"mntl-sc-block_37-0\" class=\"comp mntl-sc-block beauty-sc-block-html mntl-sc-block-html\"> &#8220;Caring for low-porosity\u00a0hair involves utilizing heat, such as warm water and heat-based treatments, to enhance product absorption,&#8221; Park says. Why?<em>\u00a0<\/em>Warmth has the ability to open hair&#8217;s cuticles, allowing for nourishing products to penetrate deep into strands. If you plan on using hot styling tools on your low porosity hair, Park recommends the K\u00e9rastase Nutritive Heat Protecting Leave-In Spray<strong>\u00a0&#8220;<\/strong>because it offers both heat protection, while it also deeply moisturizes.&#8221;\n<\/p>\n<h3 id=\"mntl-sc-block_39-0\" class=\"comp mntl-sc-block beauty-sc-block-subheading mntl-sc-block-subheading\"><span class=\"mntl-sc-block-subheading__text\"> Wash Hair Using a Sulfate-Free Shampoo <\/span><\/h3>\n<p id=\"mntl-sc-block_40-0\" class=\"comp mntl-sc-block beauty-sc-block-html mntl-sc-block-html\"> Rullan also recommends all hair types always use a sulfate-free shampoo, as sulfates can be quite drying. For those of us with drier hair, she recommends pairing your shampoo days with your mask or treatment day because, as she puts it, &#8220;No matter the porosity, the essential goal with styling is to aid in water retention creating a shiny, juicy curl.&#8221;\u00a0And if you&#8217;re working with tangled hair, Hardges recommends that you &#8220;be gentle when you&#8217;re detangling the hair while wet. Remove tangles starting at the ends and work your way up.&#8221;\n<\/p>\n<h3 id=\"mntl-sc-block_42-0\" class=\"comp mntl-sc-block beauty-sc-block-subheading mntl-sc-block-subheading\"><span class=\"mntl-sc-block-subheading__text\"> Lock in Moisture with a Deep Conditioner <\/span><\/h3>\n<p id=\"mntl-sc-block_43-0\" class=\"comp mntl-sc-block beauty-sc-block-html mntl-sc-block-html\"> As for styling, Rullan says moisture-locking products are best. &#8220;We want to trap in as much water as possible. Squeeze out excess moisture before applying product, but don&#8217;t towel dry. With low porosity hair, steam from the shower is helpful, so use that to your advantage.&#8221; Hardges recommends using a deep conditioner in lieu of a regular conditioner as they &#8220;are thicker and more concentrated.&#8221; For an extra dose of shine, &#8220;Use apple cider vinegar after rinsing out the mask to help close the cuticle. This strengthens the strands and makes for a shinier finish,&#8221; says Hardges.\n<\/p>\n<h3 id=\"mntl-sc-block_45-0\" class=\"comp mntl-sc-block beauty-sc-block-subheading mntl-sc-block-subheading\"><span class=\"mntl-sc-block-subheading__text\"> Add Protein Treatments to Your Routine <\/span><\/h3>\n<p id=\"mntl-sc-block_46-0\" class=\"comp mntl-sc-block beauty-sc-block-html mntl-sc-block-html\"> Protein treatments can help reinforce and repair the hair&#8217;s structure, minimizing breakage and promoting strength, according to Park. This is especially beneficial for low-porosity hair, which can be more prone to damage due to limited moisture intake, making strands brittle.\n<\/p>\n<div id=\"mntl-sc-block_48-0\" class=\"comp mntl-sc-block beauty-sc-block-featuredlink mntl-sc-block-featuredlink mntl-block learnmore-link\"><span class=\"link__wrapper\">How to Choose a Protein Treatment for Natural Hair<\/span><\/div>\n<h3 id=\"mntl-sc-block_50-0\" class=\"comp mntl-sc-block beauty-sc-block-subheading mntl-sc-block-subheading\"><span class=\"mntl-sc-block-subheading__text\"> Maintain Hydration with Protective Styles <\/span><\/h3>\n<p id=\"mntl-sc-block_51-0\" class=\"comp mntl-sc-block beauty-sc-block-html mntl-sc-block-html\"> Rullan left us with a few gems at the end of our chat: &#8220;If definition and moisture retention are your priority, twists, braid-outs, and Bantu knots are the way to go. These sets help trap moisture in and allow more time for the hair to slowly but surely absorb moisture.&#8221;\n<\/p>\n<p id=\"mntl-sc-block_53-0\" class=\"comp mntl-sc-block beauty-sc-block-html mntl-sc-block-html\"> Lastly, she adds, &#8220;Sometimes, when people decide to embrace their natural texture, they assume it will be easier. Although natural is healthier, it&#8217;s not necessarily easier\u2014in fact, for some, it may imply more work. Rest assured, the work is worth it for happier, healthier hair. You get out of it what you put into it.&#8221;\n<\/p>\n<div id=\"mntl-sc-block_55-0\" class=\"comp mntl-sc-block beauty-sc-block-featuredlink mntl-sc-block-featuredlink mntl-block upnext-link\"><span class=\"link__wrapper\">How to Determine Your Hair Porosity, According to Pros<\/span><\/div>\n<p id=\"mntl-sc-block_57-0\" class=\"comp mntl-sc-block beauty-sc-block-html mntl-sc-block-html\"> \u00a0\n<\/p>\n<\/div>\n<div id=\"citation-sources_1-0\" class=\"comp citation-sources mntl-article-sources mntl-expandable-block u-article-styles\" data-scroll-offset=\"70\">\n<div class=\"loc toggle-content\">\n<div id=\"mntl-article-sources__wrapper_1-0\" class=\"comp mntl-article-sources__wrapper mntl-block\" data-click-tracked=\"true\"><span id=\"mntl-article-sources__heading_1-0\" class=\"comp mntl-article-sources__heading mntl-text-block\">Article Sources<\/span><\/div>\n<\/div>\n<div class=\"loc expandable-content\">\n<div id=\"citation-sources__text_1-0\" class=\"comp citation-sources__text mntl-text-block\">Byrdie takes every opportunity to use high-quality sources, including peer-reviewed studies, to support the facts within our articles. Read our editorial guidelines to learn more about how we keep our content accurate, reliable and trustworthy.<\/div>\n<div id=\"mntl-article-sources__citation-sources_1-0\" class=\"comp mntl-article-sources__citation-sources mntl-citation-sources mntl-sources\" data-tracking-container=\"true\">\n<ol class=\"mntl-sources__content\">\n<li class=\"mntl-sources__source\" id=\"citation-2\">\n<p>Lin TK, Zhong L, Santiago JL. Anti-inflammatory and skin barrier repair effects of topical application of some plant oils.\u00a0<em>Int J Mol Sci<\/em>. 2017;19(1):70. doi:10.3390\/ijms19010070<\/p>\n<\/li>\n<li class=\"mntl-sources__source\" id=\"citation-1\">\n<p>Gavazzoni Dias MFR. Pro and contra of cleansing conditioners.\u00a0<em>Skin Appendage Disord<\/em>. 2019;5(3):131-134. doi:10.1159\/000493588<\/p>\n<\/li>\n<\/ol>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"loc article-post-content\">\n<div id=\"beauty-breadcrumbs--chips_1-0\" class=\"comp beauty-breadcrumbs--chips mntl-universal-breadcrumbs--chips mntl-block\">\n<div id=\"mntl-breadcrumbs__read-more_1-0\" class=\"comp mntl-breadcrumbs__read-more mntl-text-block text-title-100\">Read more:<\/div>\n<ul id=\"mntl-universal-breadcrumbs_1-0\" class=\"comp mntl-universal-breadcrumbs mntl-block text-label-300 breadcrumbs\" data-tracking-container=\"true\">\n<li id=\"mntl-breadcrumbs__item_1-0\" class=\"comp mntl-breadcrumbs__item mntl-block\"><span class=\"link__wrapper\">Hair<\/span><\/li>\n<li id=\"mntl-breadcrumbs__item_2-0\" class=\"comp mntl-breadcrumbs__item mntl-block\"><span class=\"link__wrapper\">Haircare<\/span><\/li>\n<\/ul>\n<\/div>\n<\/div>\n<\/article>\n<div class=\"loc article-content\">\n<div id=\"article__broad-video-jw_1-0\" class=\"comp article__broad-video-jw mntl-jwplayer-broad mntl-block is-hidden\" data-pixel-depth=\"100\">\n<div id=\"mntl-jwplayer-broad__title_1-0\" class=\"comp mntl-jwplayer-broad__title mntl-block\"><button id=\"mntl-jwplayer-broad__title-icon--close_1-0\" class=\"comp mntl-jwplayer-broad__title-icon--close mntl-block text-label-100\" data-click-tracked=\"false\"><span id=\"mntl-text-block_2-0\" class=\"comp mntl-text-block\">Close<\/span><\/button><\/div>\n<\/div>\n<div id=\"mntl-block_2-0\" class=\"comp mntl-block article__body right-rail\">\n<figure id=\"mntl-universal-primary-image_1-0\" class=\"comp mntl-universal-primary-image primary-image\" data-tracking-container=\"true\">\n<div class=\"primary-image__media\">\n<div class=\"img-placeholder\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/analyse.optim.biz\/wp-content\/uploads\/2026\/02\/hair-porosity-1-2e71d5b81ea749ac924d4b8157c5e81b-3.webp\" width=\"1280\" height=\"960\" alt=\"Person with curly hair side view demonstrating hair texture\" class=\" primary-image__image mntl-primary-image--blurry\" title=\"hair-porosity-1-2e71d5b81ea749ac924d4b8157c5e81b-3\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/analyse.optim.biz\/wp-content\/uploads\/2026\/02\/hair-porosity-1-2e71d5b81ea749ac924d4b8157c5e81b-3.webp\" width=\"1280\" height=\"960\" class=\"loaded primary-img--noscript primary-image__image mntl-primary-image--blurry\" alt=\"Person with curly hair side view demonstrating hair texture\" title=\"hair-porosity-1-2e71d5b81ea749ac924d4b8157c5e81b-3\"><\/div>\n<\/div><figcaption id=\"primary-image__figcap_1-0\" class=\"comp primary-image__figcap mntl-figure-caption figure-article-caption\"><span class=\"figure-article-caption-owner\"><\/p>\n<p>Death to Stock<\/p>\n<p><\/span><\/figcaption><\/figure>\n<div id=\"mntl-sc-page_1-0\" class=\"comp mntl-sc-page mntl-block\" data-sc-sticky-offset=\"125\" data-sc-ad-label-height=\"16\" data-sc-ad-track-spacing=\"100\" data-sc-min-track-height=\"250\" data-sc-max-track-height=\"600\" data-sc-breakpoint=\"50em\" data-sc-load-immediate=\"5\" data-sc-content-positions=\"[1, 1250, 1, 1, 1, 1, 1, 1, 1]\" data-bind-scroll-on-start=\"true\">\n<div id=\"mntl-sc-block_1-0\" class=\"comp mntl-sc-block beauty-sc-block-callout--finalverdict beauty-sc-block-callout mntl-sc-block-callout mntl-block theme-finalverdict\" data-tracking-id=\"mntl-sc-block-callout\" data-tracking-container=\"true\">\n<p id=\"mntl-sc-block-callout-heading_1-0\" class=\"comp mntl-sc-block-callout-heading mntl-text-block\">Key Takeaways<\/p>\n<div id=\"mntl-sc-block-callout-body_1-0\" class=\"comp mntl-sc-block-callout-body mntl-text-block\">\n<ul>\n<li>Low porosity hair has a tightly sealed cuticle, making it resistant to absorbing water and treatments.<\/li>\n<li>Use heat to open the cuticle and improve absorption of moisturizing hair products. <\/li>\n<li>Incorporate protein treatments in your routine to strengthen low porosity hair and reduce breakage.<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<p id=\"mntl-sc-block_2-0\" class=\"comp mntl-sc-block beauty-sc-block-html mntl-sc-block-html\"> There may be more at play with your damaged hair than the obvious: achieving healthy hair runs deeper than simply choosing the right ingredients, styling tools, and products to keep your strands hydrated. While texture and density are key qualities in determining a proper routine for your hair, porosity could be the other major key missing from the equation.\n<\/p>\n<p id=\"mntl-sc-block_4-0\" class=\"comp mntl-sc-block beauty-sc-block-html mntl-sc-block-html\"> If you didn\u2019t realize already, moisture plays a critical role in overall hair health. For context, low porosity hair can retain moisture for considerably long periods (hence why your hair may take forever to dry, with or without a blow dryer. But the caveat? Its extremely flat cuticle layer also makes low porosity hair less likely to absorb water and nourishing hair treatments.\n<\/p>\n<p id=\"mntl-sc-block_6-0\" class=\"comp mntl-sc-block beauty-sc-block-html mntl-sc-block-html\"> Low porosity hair can honestly feel like a double-edged sword to deal with, but there\u2019s good news\u2014we know just who to ask about maximizing its potential. For the ins and outs of caring for low porosity hair, we turned to top dermatologist Joyce Park, MD, as well as curl specialists Marissa Rullan of Studio 210 and Leigh Hardges from Maxine Salon. Below, learn everything from how to find out your hair&#8217;s porosity to what to look for on product labels.<\/p>\n<p id=\"mntl-sc-block_8-0\" class=\"comp mntl-sc-block beauty-sc-block-html mntl-sc-block-html\"><strong>Keep reading for their tips on how to care for low-porosity hair on wash day and beyond.<\/strong><\/p>\n<div id=\"mntl-sc-block_10-0\" class=\"comp mntl-sc-block beauty-sc-block-callout--meetourexpert beauty-sc-block-callout mntl-sc-block-callout mntl-block theme-meetourexpert\" data-tracking-id=\"mntl-sc-block-callout\" data-tracking-container=\"true\">\n<p id=\"mntl-sc-block-callout-heading_2-0\" class=\"comp mntl-sc-block-callout-heading mntl-text-block\">Meet the Experts<\/p>\n<div id=\"mntl-sc-block-callout-body_2-0\" class=\"comp mntl-sc-block-callout-body mntl-text-block\">\n<ul>\n<li>Joyce Park, MD, is a board-certified dermatologist based in Washington, founder of teledermatology clinic\u00a0Skin Refinery, and creator of\u00a0Tea With MD.<\/li>\n<li>Marissa Rullan is a curly hair specialist and Innersense educator based in the Bay Area.<\/li>\n<li>Leigh Hardges is a stylist at\u00a0Maxine Salon in Chicago.<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<h2 id=\"mntl-sc-block_11-0\" class=\"comp mntl-sc-block beauty-sc-block-heading mntl-sc-block-heading\"><span class=\"mntl-sc-block-heading__text text-title-300\"> What Is Hair Porosity? <\/span><\/h2>\n<p id=\"mntl-sc-block_12-0\" class=\"comp mntl-sc-block beauty-sc-block-html mntl-sc-block-html\"> Hair porosity refers to how your hair retains and absorbs moisture based on how open or closed the cuticle layer (the outermost layer) is. To better understand the role of the cuticle in hair porosity, here&#8217;s what you need to know about the structure of hair strands: &#8220;The medulla is the innermost layer of the hair shaft, and it is composed of cells and air spaces and is generally more prominent in thick or coarse hair,&#8221; Park says, &#8220;The cortex is the middle layer and makes up the majority of the hair structure. It contains keratin, which provides strength and elasticity to the hair. The cortex also determines the color and texture of the hair.&#8221;\n<\/p>\n<p id=\"mntl-sc-block_14-0\" class=\"comp mntl-sc-block beauty-sc-block-html mntl-sc-block-html\"> &#8220;Then we have the outermost layer of the hair shaft, the cuticle, which consists of overlapping, transparent cells that resemble shingles on a roof,&#8221; Park continues, &#8220;The cuticle serves as a protective layer for the cortex, preventing damage and contributing to the hair&#8217;s overall strength and shine. The health and condition of the cuticle also affects the hair&#8217;s texture and appearance.&#8221;\n<\/p>\n<h2 id=\"mntl-sc-block_16-0\" class=\"comp mntl-sc-block beauty-sc-block-heading mntl-sc-block-heading\"><span class=\"mntl-sc-block-heading__text text-title-300\"> What Is Low Porosity Hair? <\/span><\/h2>\n<p id=\"mntl-sc-block_17-0\" class=\"comp mntl-sc-block beauty-sc-block-html mntl-sc-block-html\"> Low\u00a0porosity\u00a0hair has a tightly sealed cuticle layer, making it resistant to moisture absorption. &#8220;Such hair often feels smooth and can seem resistant to styling products,&#8221; says Park.\n<\/p>\n<p id=\"mntl-sc-block_19-0\" class=\"comp mntl-sc-block beauty-sc-block-html mntl-sc-block-html\"> &#8220;Low\u00a0porosity\u00a0[hair] is typically caused by genetics, while high\u00a0porosity\u00a0can result from environmental damage, excessive heat styling, or chemical treatments,&#8221; she adds.\n<\/p>\n<h2 id=\"mntl-sc-block_21-0\" class=\"comp mntl-sc-block beauty-sc-block-heading mntl-sc-block-heading\"><span class=\"mntl-sc-block-heading__text text-title-300\"> How to Determine Your Hair&#8217;s Porosity <\/span><\/h2>\n<p id=\"mntl-sc-block_22-0\" class=\"comp mntl-sc-block beauty-sc-block-html mntl-sc-block-html\"> Curious how to test your own hair&#8217;s absorbency abilities? Park and Rullan say there are two at-home ways to do so: the sink or float test and the spray bottle test. &#8220;These tests provide insights into your hair&#8217;s ability to absorb and retain moisture, helping you tailor your hair care routine accordingly,&#8221; Park says, &#8220;[But] keep in mind that individual hair strands may vary, so it&#8217;s helpful to consider the overall pattern across your hair.&#8221;<em><br \/><\/em><\/p>\n<h3 id=\"mntl-sc-block_24-0\" class=\"comp mntl-sc-block beauty-sc-block-subheading mntl-sc-block-subheading\"><span class=\"mntl-sc-block-subheading__text\"> Try the Sink or Float Test <\/span><\/h3>\n<p id=\"mntl-sc-block_25-0\" class=\"comp mntl-sc-block beauty-sc-block-html mntl-sc-block-html\"> For the sink or float test, &#8220;You&#8217;ll take a few strands of hair that have naturally shed from the scalp and fill a cup with room temperature water,&#8221; Rullan explains. &#8220;Remember, hot water opens the cuticle, so if the water is too hot, regardless of the porosity, the hair will load up with water and sink. High porosity is so open; the hair will quickly absorb water and then sink to the bottom of the cup. Low porosity hair is water-resistant, which means the strands will remain floating towards the surface even after a few minutes. If the hair hovers in the middle, you have medium or (normal) porosity which absorbs and retains water well.&#8221;\u00a0\n<\/p>\n<h3 id=\"mntl-sc-block_27-0\" class=\"comp mntl-sc-block beauty-sc-block-subheading mntl-sc-block-subheading\"><span class=\"mntl-sc-block-subheading__text\"> Test with a Spray Bottle <\/span><\/h3>\n<p id=\"mntl-sc-block_28-0\" class=\"comp mntl-sc-block beauty-sc-block-html mntl-sc-block-html\"> Next is the spray bottle test. &#8220;You&#8217;ll simply mist a section of the hair and closely watch,&#8221; instructs Rullan. &#8220;If the water beads up and fails to absorb, maybe even rolling off of the hair after a few minutes, you have low porosity hair.&#8221;<\/p>\n<h2 id=\"mntl-sc-block_30-0\" class=\"comp mntl-sc-block beauty-sc-block-heading mntl-sc-block-heading\"><span class=\"mntl-sc-block-heading__text text-title-300\"> How to Take Care of Low Porosity Hair <\/span><\/h2>\n<p id=\"mntl-sc-block_31-0\" class=\"comp mntl-sc-block beauty-sc-block-html mntl-sc-block-html\"> &#8220;Understanding your hair&#8217;s\u00a0porosity\u00a0helps tailor a hair care routine,&#8221; according to Park. Here are the best tips on how to take care of low porosity hair, according to the experts:\n<\/p>\n<h3 id=\"mntl-sc-block_33-0\" class=\"comp mntl-sc-block beauty-sc-block-subheading mntl-sc-block-subheading\"><span class=\"mntl-sc-block-subheading__text\"> Moisturize Using Emollient Ingredients <\/span><\/h3>\n<p id=\"mntl-sc-block_34-0\" class=\"comp mntl-sc-block beauty-sc-block-html mntl-sc-block-html\"> &#8220;High-porosity hair frizzes out when exposed to humidity and becomes more easily dry and brittle in dry heat,&#8221; says Rullan. &#8220;Low porosity hair is moisture resistant because the cuticle layer is so tightly closed that water molecules are too big to penetrate the hair shaft.&#8221; In other words, moisture is the key no matter your hair&#8217;s porosity; look for products with emollients\u2014or softening ingredients such as aloe, avocado, jojoba oil, and shea butter\u2014as they form a barrier and trap water.<\/p>\n<h3 id=\"mntl-sc-block_36-0\" class=\"comp mntl-sc-block beauty-sc-block-subheading mntl-sc-block-subheading\"><span class=\"mntl-sc-block-subheading__text\"> Embrace Warmth <\/span><\/h3>\n<p id=\"mntl-sc-block_37-0\" class=\"comp mntl-sc-block beauty-sc-block-html mntl-sc-block-html\"> &#8220;Caring for low-porosity\u00a0hair involves utilizing heat, such as warm water and heat-based treatments, to enhance product absorption,&#8221; Park says. Why?<em>\u00a0<\/em>Warmth has the ability to open hair&#8217;s cuticles, allowing for nourishing products to penetrate deep into strands. If you plan on using hot styling tools on your low porosity hair, Park recommends the K\u00e9rastase Nutritive Heat Protecting Leave-In Spray<strong>\u00a0&#8220;<\/strong>because it offers both heat protection, while it also deeply moisturizes.&#8221;\n<\/p>\n<h3 id=\"mntl-sc-block_39-0\" class=\"comp mntl-sc-block beauty-sc-block-subheading mntl-sc-block-subheading\"><span class=\"mntl-sc-block-subheading__text\"> Wash Hair Using a Sulfate-Free Shampoo <\/span><\/h3>\n<p id=\"mntl-sc-block_40-0\" class=\"comp mntl-sc-block beauty-sc-block-html mntl-sc-block-html\"> Rullan also recommends all hair types always use a sulfate-free shampoo, as sulfates can be quite drying. For those of us with drier hair, she recommends pairing your shampoo days with your mask or treatment day because, as she puts it, &#8220;No matter the porosity, the essential goal with styling is to aid in water retention creating a shiny, juicy curl.&#8221;\u00a0And if you&#8217;re working with tangled hair, Hardges recommends that you &#8220;be gentle when you&#8217;re detangling the hair while wet. Remove tangles starting at the ends and work your way up.&#8221;\n<\/p>\n<h3 id=\"mntl-sc-block_42-0\" class=\"comp mntl-sc-block beauty-sc-block-subheading mntl-sc-block-subheading\"><span class=\"mntl-sc-block-subheading__text\"> Lock in Moisture with a Deep Conditioner <\/span><\/h3>\n<p id=\"mntl-sc-block_43-0\" class=\"comp mntl-sc-block beauty-sc-block-html mntl-sc-block-html\"> As for styling, Rullan says moisture-locking products are best. &#8220;We want to trap in as much water as possible. Squeeze out excess moisture before applying product, but don&#8217;t towel dry. With low porosity hair, steam from the shower is helpful, so use that to your advantage.&#8221; Hardges recommends using a deep conditioner in lieu of a regular conditioner as they &#8220;are thicker and more concentrated.&#8221; For an extra dose of shine, &#8220;Use apple cider vinegar after rinsing out the mask to help close the cuticle. This strengthens the strands and makes for a shinier finish,&#8221; says Hardges.\n<\/p>\n<h3 id=\"mntl-sc-block_45-0\" class=\"comp mntl-sc-block beauty-sc-block-subheading mntl-sc-block-subheading\"><span class=\"mntl-sc-block-subheading__text\"> Add Protein Treatments to Your Routine <\/span><\/h3>\n<p id=\"mntl-sc-block_46-0\" class=\"comp mntl-sc-block beauty-sc-block-html mntl-sc-block-html\"> Protein treatments can help reinforce and repair the hair&#8217;s structure, minimizing breakage and promoting strength, according to Park. This is especially beneficial for low-porosity hair, which can be more prone to damage due to limited moisture intake, making strands brittle.\n<\/p>\n<div id=\"mntl-sc-block_48-0\" class=\"comp mntl-sc-block beauty-sc-block-featuredlink mntl-sc-block-featuredlink mntl-block learnmore-link\"><span class=\"link__wrapper\">How to Choose a Protein Treatment for Natural Hair<\/span><\/div>\n<h3 id=\"mntl-sc-block_50-0\" class=\"comp mntl-sc-block beauty-sc-block-subheading mntl-sc-block-subheading\"><span class=\"mntl-sc-block-subheading__text\"> Maintain Hydration with Protective Styles <\/span><\/h3>\n<p id=\"mntl-sc-block_51-0\" class=\"comp mntl-sc-block beauty-sc-block-html mntl-sc-block-html\"> Rullan left us with a few gems at the end of our chat: &#8220;If definition and moisture retention are your priority, twists, braid-outs, and Bantu knots are the way to go. These sets help trap moisture in and allow more time for the hair to slowly but surely absorb moisture.&#8221;\n<\/p>\n<p id=\"mntl-sc-block_53-0\" class=\"comp mntl-sc-block beauty-sc-block-html mntl-sc-block-html\"> Lastly, she adds, &#8220;Sometimes, when people decide to embrace their natural texture, they assume it will be easier. Although natural is healthier, it&#8217;s not necessarily easier\u2014in fact, for some, it may imply more work. Rest assured, the work is worth it for happier, healthier hair. You get out of it what you put into it.&#8221;\n<\/p>\n<div id=\"mntl-sc-block_55-0\" class=\"comp mntl-sc-block beauty-sc-block-featuredlink mntl-sc-block-featuredlink mntl-block upnext-link\"><span class=\"link__wrapper\">How to Determine Your Hair Porosity, According to Pros<\/span><\/div>\n<p id=\"mntl-sc-block_57-0\" class=\"comp mntl-sc-block beauty-sc-block-html mntl-sc-block-html\"> \u00a0\n<\/p>\n<\/div>\n<div id=\"citation-sources_1-0\" class=\"comp citation-sources mntl-article-sources mntl-expandable-block u-article-styles\" data-scroll-offset=\"70\">\n<div class=\"loc toggle-content\">\n<div id=\"mntl-article-sources__wrapper_1-0\" class=\"comp mntl-article-sources__wrapper mntl-block\" data-click-tracked=\"true\"><span id=\"mntl-article-sources__heading_1-0\" class=\"comp mntl-article-sources__heading mntl-text-block\">Article Sources<\/span><\/div>\n<\/div>\n<div class=\"loc expandable-content\">\n<div id=\"citation-sources__text_1-0\" class=\"comp citation-sources__text mntl-text-block\">Byrdie takes every opportunity to use high-quality sources, including peer-reviewed studies, to support the facts within our articles. Read our editorial guidelines to learn more about how we keep our content accurate, reliable and trustworthy.<\/div>\n<div id=\"mntl-article-sources__citation-sources_1-0\" class=\"comp mntl-article-sources__citation-sources mntl-citation-sources mntl-sources\" data-tracking-container=\"true\">\n<ol class=\"mntl-sources__content\">\n<li class=\"mntl-sources__source\" id=\"citation-2\">\n<p>Lin TK, Zhong L, Santiago JL. Anti-inflammatory and skin barrier repair effects of topical application of some plant oils.\u00a0<em>Int J Mol Sci<\/em>. 2017;19(1):70. doi:10.3390\/ijms19010070<\/p>\n<\/li>\n<li class=\"mntl-sources__source\" id=\"citation-1\">\n<p>Gavazzoni Dias MFR. Pro and contra of cleansing conditioners.\u00a0<em>Skin Appendage Disord<\/em>. 2019;5(3):131-134. doi:10.1159\/000493588<\/p>\n<\/li>\n<\/ol>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div id=\"mntl-sc-page_1-0\" class=\"comp mntl-sc-page mntl-block\" data-sc-sticky-offset=\"125\" data-sc-ad-label-height=\"16\" data-sc-ad-track-spacing=\"100\" data-sc-min-track-height=\"250\" data-sc-max-track-height=\"600\" data-sc-breakpoint=\"50em\" data-sc-load-immediate=\"5\" data-sc-content-positions=\"[1, 1250, 1, 1, 1, 1, 1, 1, 1]\" data-bind-scroll-on-start=\"true\">\n<div id=\"mntl-sc-block_1-0\" class=\"comp mntl-sc-block beauty-sc-block-callout--finalverdict beauty-sc-block-callout mntl-sc-block-callout mntl-block theme-finalverdict\" data-tracking-id=\"mntl-sc-block-callout\" data-tracking-container=\"true\">\n<p id=\"mntl-sc-block-callout-heading_1-0\" class=\"comp mntl-sc-block-callout-heading mntl-text-block\">Key Takeaways<\/p>\n<div id=\"mntl-sc-block-callout-body_1-0\" class=\"comp mntl-sc-block-callout-body mntl-text-block\">\n<ul>\n<li>Low porosity hair has a tightly sealed cuticle, making it resistant to absorbing water and treatments.<\/li>\n<li>Use heat to open the cuticle and improve absorption of moisturizing hair products. <\/li>\n<li>Incorporate protein treatments in your routine to strengthen low porosity hair and reduce breakage.<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<p id=\"mntl-sc-block_2-0\" class=\"comp mntl-sc-block beauty-sc-block-html mntl-sc-block-html\"> There may be more at play with your damaged hair than the obvious: achieving healthy hair runs deeper than simply choosing the right ingredients, styling tools, and products to keep your strands hydrated. While texture and density are key qualities in determining a proper routine for your hair, porosity could be the other major key missing from the equation.\n<\/p>\n<p id=\"mntl-sc-block_4-0\" class=\"comp mntl-sc-block beauty-sc-block-html mntl-sc-block-html\"> If you didn\u2019t realize already, moisture plays a critical role in overall hair health. For context, low porosity hair can retain moisture for considerably long periods (hence why your hair may take forever to dry, with or without a blow dryer. But the caveat? Its extremely flat cuticle layer also makes low porosity hair less likely to absorb water and nourishing hair treatments.\n<\/p>\n<p id=\"mntl-sc-block_6-0\" class=\"comp mntl-sc-block beauty-sc-block-html mntl-sc-block-html\"> Low porosity hair can honestly feel like a double-edged sword to deal with, but there\u2019s good news\u2014we know just who to ask about maximizing its potential. For the ins and outs of caring for low porosity hair, we turned to top dermatologist Joyce Park, MD, as well as curl specialists Marissa Rullan of Studio 210 and Leigh Hardges from Maxine Salon. Below, learn everything from how to find out your hair&#8217;s porosity to what to look for on product labels.<\/p>\n<p id=\"mntl-sc-block_8-0\" class=\"comp mntl-sc-block beauty-sc-block-html mntl-sc-block-html\"><strong>Keep reading for their tips on how to care for low-porosity hair on wash day and beyond.<\/strong><\/p>\n<div id=\"mntl-sc-block_10-0\" class=\"comp mntl-sc-block beauty-sc-block-callout--meetourexpert beauty-sc-block-callout mntl-sc-block-callout mntl-block theme-meetourexpert\" data-tracking-id=\"mntl-sc-block-callout\" data-tracking-container=\"true\">\n<p id=\"mntl-sc-block-callout-heading_2-0\" class=\"comp mntl-sc-block-callout-heading mntl-text-block\">Meet the Experts<\/p>\n<div id=\"mntl-sc-block-callout-body_2-0\" class=\"comp mntl-sc-block-callout-body mntl-text-block\">\n<ul>\n<li>Joyce Park, MD, is a board-certified dermatologist based in Washington, founder of teledermatology clinic\u00a0Skin Refinery, and creator of\u00a0Tea With MD.<\/li>\n<li>Marissa Rullan is a curly hair specialist and Innersense educator based in the Bay Area.<\/li>\n<li>Leigh Hardges is a stylist at\u00a0Maxine Salon in Chicago.<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<h2 id=\"mntl-sc-block_11-0\" class=\"comp mntl-sc-block beauty-sc-block-heading mntl-sc-block-heading\"><span class=\"mntl-sc-block-heading__text text-title-300\"> What Is Hair Porosity? <\/span><\/h2>\n<p id=\"mntl-sc-block_12-0\" class=\"comp mntl-sc-block beauty-sc-block-html mntl-sc-block-html\"> Hair porosity refers to how your hair retains and absorbs moisture based on how open or closed the cuticle layer (the outermost layer) is. To better understand the role of the cuticle in hair porosity, here&#8217;s what you need to know about the structure of hair strands: &#8220;The medulla is the innermost layer of the hair shaft, and it is composed of cells and air spaces and is generally more prominent in thick or coarse hair,&#8221; Park says, &#8220;The cortex is the middle layer and makes up the majority of the hair structure. It contains keratin, which provides strength and elasticity to the hair. The cortex also determines the color and texture of the hair.&#8221;\n<\/p>\n<p id=\"mntl-sc-block_14-0\" class=\"comp mntl-sc-block beauty-sc-block-html mntl-sc-block-html\"> &#8220;Then we have the outermost layer of the hair shaft, the cuticle, which consists of overlapping, transparent cells that resemble shingles on a roof,&#8221; Park continues, &#8220;The cuticle serves as a protective layer for the cortex, preventing damage and contributing to the hair&#8217;s overall strength and shine. The health and condition of the cuticle also affects the hair&#8217;s texture and appearance.&#8221;\n<\/p>\n<h2 id=\"mntl-sc-block_16-0\" class=\"comp mntl-sc-block beauty-sc-block-heading mntl-sc-block-heading\"><span class=\"mntl-sc-block-heading__text text-title-300\"> What Is Low Porosity Hair? <\/span><\/h2>\n<p id=\"mntl-sc-block_17-0\" class=\"comp mntl-sc-block beauty-sc-block-html mntl-sc-block-html\"> Low\u00a0porosity\u00a0hair has a tightly sealed cuticle layer, making it resistant to moisture absorption. &#8220;Such hair often feels smooth and can seem resistant to styling products,&#8221; says Park.\n<\/p>\n<p id=\"mntl-sc-block_19-0\" class=\"comp mntl-sc-block beauty-sc-block-html mntl-sc-block-html\"> &#8220;Low\u00a0porosity\u00a0[hair] is typically caused by genetics, while high\u00a0porosity\u00a0can result from environmental damage, excessive heat styling, or chemical treatments,&#8221; she adds.\n<\/p>\n<h2 id=\"mntl-sc-block_21-0\" class=\"comp mntl-sc-block beauty-sc-block-heading mntl-sc-block-heading\"><span class=\"mntl-sc-block-heading__text text-title-300\"> How to Determine Your Hair&#8217;s Porosity <\/span><\/h2>\n<p id=\"mntl-sc-block_22-0\" class=\"comp mntl-sc-block beauty-sc-block-html mntl-sc-block-html\"> Curious how to test your own hair&#8217;s absorbency abilities? Park and Rullan say there are two at-home ways to do so: the sink or float test and the spray bottle test. &#8220;These tests provide insights into your hair&#8217;s ability to absorb and retain moisture, helping you tailor your hair care routine accordingly,&#8221; Park says, &#8220;[But] keep in mind that individual hair strands may vary, so it&#8217;s helpful to consider the overall pattern across your hair.&#8221;<em><br \/><\/em><\/p>\n<h3 id=\"mntl-sc-block_24-0\" class=\"comp mntl-sc-block beauty-sc-block-subheading mntl-sc-block-subheading\"><span class=\"mntl-sc-block-subheading__text\"> Try the Sink or Float Test <\/span><\/h3>\n<p id=\"mntl-sc-block_25-0\" class=\"comp mntl-sc-block beauty-sc-block-html mntl-sc-block-html\"> For the sink or float test, &#8220;You&#8217;ll take a few strands of hair that have naturally shed from the scalp and fill a cup with room temperature water,&#8221; Rullan explains. &#8220;Remember, hot water opens the cuticle, so if the water is too hot, regardless of the porosity, the hair will load up with water and sink. High porosity is so open; the hair will quickly absorb water and then sink to the bottom of the cup. Low porosity hair is water-resistant, which means the strands will remain floating towards the surface even after a few minutes. If the hair hovers in the middle, you have medium or (normal) porosity which absorbs and retains water well.&#8221;\u00a0\n<\/p>\n<h3 id=\"mntl-sc-block_27-0\" class=\"comp mntl-sc-block beauty-sc-block-subheading mntl-sc-block-subheading\"><span class=\"mntl-sc-block-subheading__text\"> Test with a Spray Bottle <\/span><\/h3>\n<p id=\"mntl-sc-block_28-0\" class=\"comp mntl-sc-block beauty-sc-block-html mntl-sc-block-html\"> Next is the spray bottle test. &#8220;You&#8217;ll simply mist a section of the hair and closely watch,&#8221; instructs Rullan. &#8220;If the water beads up and fails to absorb, maybe even rolling off of the hair after a few minutes, you have low porosity hair.&#8221;<\/p>\n<h2 id=\"mntl-sc-block_30-0\" class=\"comp mntl-sc-block beauty-sc-block-heading mntl-sc-block-heading\"><span class=\"mntl-sc-block-heading__text text-title-300\"> How to Take Care of Low Porosity Hair <\/span><\/h2>\n<p id=\"mntl-sc-block_31-0\" class=\"comp mntl-sc-block beauty-sc-block-html mntl-sc-block-html\"> &#8220;Understanding your hair&#8217;s\u00a0porosity\u00a0helps tailor a hair care routine,&#8221; according to Park. Here are the best tips on how to take care of low porosity hair, according to the experts:\n<\/p>\n<h3 id=\"mntl-sc-block_33-0\" class=\"comp mntl-sc-block beauty-sc-block-subheading mntl-sc-block-subheading\"><span class=\"mntl-sc-block-subheading__text\"> Moisturize Using Emollient Ingredients <\/span><\/h3>\n<p id=\"mntl-sc-block_34-0\" class=\"comp mntl-sc-block beauty-sc-block-html mntl-sc-block-html\"> &#8220;High-porosity hair frizzes out when exposed to humidity and becomes more easily dry and brittle in dry heat,&#8221; says Rullan. &#8220;Low porosity hair is moisture resistant because the cuticle layer is so tightly closed that water molecules are too big to penetrate the hair shaft.&#8221; In other words, moisture is the key no matter your hair&#8217;s porosity; look for products with emollients\u2014or softening ingredients such as aloe, avocado, jojoba oil, and shea butter\u2014as they form a barrier and trap water.<\/p>\n<h3 id=\"mntl-sc-block_36-0\" class=\"comp mntl-sc-block beauty-sc-block-subheading mntl-sc-block-subheading\"><span class=\"mntl-sc-block-subheading__text\"> Embrace Warmth <\/span><\/h3>\n<p id=\"mntl-sc-block_37-0\" class=\"comp mntl-sc-block beauty-sc-block-html mntl-sc-block-html\"> &#8220;Caring for low-porosity\u00a0hair involves utilizing heat, such as warm water and heat-based treatments, to enhance product absorption,&#8221; Park says. Why?<em>\u00a0<\/em>Warmth has the ability to open hair&#8217;s cuticles, allowing for nourishing products to penetrate deep into strands. If you plan on using hot styling tools on your low porosity hair, Park recommends the K\u00e9rastase Nutritive Heat Protecting Leave-In Spray<strong>\u00a0&#8220;<\/strong>because it offers both heat protection, while it also deeply moisturizes.&#8221;\n<\/p>\n<h3 id=\"mntl-sc-block_39-0\" class=\"comp mntl-sc-block beauty-sc-block-subheading mntl-sc-block-subheading\"><span class=\"mntl-sc-block-subheading__text\"> Wash Hair Using a Sulfate-Free Shampoo <\/span><\/h3>\n<p id=\"mntl-sc-block_40-0\" class=\"comp mntl-sc-block beauty-sc-block-html mntl-sc-block-html\"> Rullan also recommends all hair types always use a sulfate-free shampoo, as sulfates can be quite drying. For those of us with drier hair, she recommends pairing your shampoo days with your mask or treatment day because, as she puts it, &#8220;No matter the porosity, the essential goal with styling is to aid in water retention creating a shiny, juicy curl.&#8221;\u00a0And if you&#8217;re working with tangled hair, Hardges recommends that you &#8220;be gentle when you&#8217;re detangling the hair while wet. Remove tangles starting at the ends and work your way up.&#8221;\n<\/p>\n<h3 id=\"mntl-sc-block_42-0\" class=\"comp mntl-sc-block beauty-sc-block-subheading mntl-sc-block-subheading\"><span class=\"mntl-sc-block-subheading__text\"> Lock in Moisture with a Deep Conditioner <\/span><\/h3>\n<p id=\"mntl-sc-block_43-0\" class=\"comp mntl-sc-block beauty-sc-block-html mntl-sc-block-html\"> As for styling, Rullan says moisture-locking products are best. &#8220;We want to trap in as much water as possible. Squeeze out excess moisture before applying product, but don&#8217;t towel dry. With low porosity hair, steam from the shower is helpful, so use that to your advantage.&#8221; Hardges recommends using a deep conditioner in lieu of a regular conditioner as they &#8220;are thicker and more concentrated.&#8221; For an extra dose of shine, &#8220;Use apple cider vinegar after rinsing out the mask to help close the cuticle. This strengthens the strands and makes for a shinier finish,&#8221; says Hardges.\n<\/p>\n<h3 id=\"mntl-sc-block_45-0\" class=\"comp mntl-sc-block beauty-sc-block-subheading mntl-sc-block-subheading\"><span class=\"mntl-sc-block-subheading__text\"> Add Protein Treatments to Your Routine <\/span><\/h3>\n<p id=\"mntl-sc-block_46-0\" class=\"comp mntl-sc-block beauty-sc-block-html mntl-sc-block-html\"> Protein treatments can help reinforce and repair the hair&#8217;s structure, minimizing breakage and promoting strength, according to Park. This is especially beneficial for low-porosity hair, which can be more prone to damage due to limited moisture intake, making strands brittle.\n<\/p>\n<div id=\"mntl-sc-block_48-0\" class=\"comp mntl-sc-block beauty-sc-block-featuredlink mntl-sc-block-featuredlink mntl-block learnmore-link\"><span class=\"link__wrapper\">How to Choose a Protein Treatment for Natural Hair<\/span><\/div>\n<h3 id=\"mntl-sc-block_50-0\" class=\"comp mntl-sc-block beauty-sc-block-subheading mntl-sc-block-subheading\"><span class=\"mntl-sc-block-subheading__text\"> Maintain Hydration with Protective Styles <\/span><\/h3>\n<p id=\"mntl-sc-block_51-0\" class=\"comp mntl-sc-block beauty-sc-block-html mntl-sc-block-html\"> Rullan left us with a few gems at the end of our chat: &#8220;If definition and moisture retention are your priority, twists, braid-outs, and Bantu knots are the way to go. These sets help trap moisture in and allow more time for the hair to slowly but surely absorb moisture.&#8221;\n<\/p>\n<p id=\"mntl-sc-block_53-0\" class=\"comp mntl-sc-block beauty-sc-block-html mntl-sc-block-html\"> Lastly, she adds, &#8220;Sometimes, when people decide to embrace their natural texture, they assume it will be easier. Although natural is healthier, it&#8217;s not necessarily easier\u2014in fact, for some, it may imply more work. Rest assured, the work is worth it for happier, healthier hair. You get out of it what you put into it.&#8221;\n<\/p>\n<div id=\"mntl-sc-block_55-0\" class=\"comp mntl-sc-block beauty-sc-block-featuredlink mntl-sc-block-featuredlink mntl-block upnext-link\"><span class=\"link__wrapper\">How to Determine Your Hair Porosity, According to Pros<\/span><\/div>\n<p id=\"mntl-sc-block_57-0\" class=\"comp mntl-sc-block beauty-sc-block-html mntl-sc-block-html\"> \u00a0\n<\/p>\n<\/div>\n<p> Source URL: https:\/\/www.byrdie.com\/low-porosity-hair-11886806<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Low Porosity Hair, Explained: What It Is and How to Keep It Hydrated Experts break it down. By Bianca Lambert Bianca Lambert Bianca is a contributing writer for Byrdie specializing in natural hair and skincare. You can find her work in xoNecole, The Everygirl, POPSUGAR, Travel Noire, and more.\u00a0 Byrdie&#8217;s Editorial Guidelines and Abby Dupes [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":1697986,"comment_status":"open","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[83,226],"class_list":["post-1697985","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-politics","tag-byrdie-com","tag-crawlmanager"],"_links":{"self":[{"href":"https:\/\/analyse.optim.biz\/index.php?rest_route=\/wp\/v2\/posts\/1697985","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/analyse.optim.biz\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/analyse.optim.biz\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/analyse.optim.biz\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/analyse.optim.biz\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1697985"}],"version-history":[{"count":0,"href":"https:\/\/analyse.optim.biz\/index.php?rest_route=\/wp\/v2\/posts\/1697985\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/analyse.optim.biz\/index.php?rest_route=\/wp\/v2\/media\/1697986"}],"wp:attachment":[{"href":"https:\/\/analyse.optim.biz\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1697985"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/analyse.optim.biz\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1697985"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/analyse.optim.biz\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1697985"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}