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The 11 Best Deep Conditioners for Damaged, Frizzy Hair, According to Testers and Hairstylists
Our favorite ultrasmoothing picks.
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Byrdie
TL;DR
Our favorite deep conditioner is the Cécred Moisturizing Deep Conditioner because its formula checks off all the boxes. Deeply moisturizes? Check! Softens the hair? Check! Adds definitions to curls? Triple check! For a budget-friendly pick, we suggest the Eva NYC Therapy Session Deep Conditioning Hair Mask. It melts into dry, brittle hair and deeply nourishes the strands, leaving you with smoother, softer hair after just one use.
Coloring, bleaching, chemical treatments, and constant heat styling can all take a serious toll on your hair, leaving it feeling dry, brittle, and prone to damage. If you put your strands through a lot, we highly recommend using a quality deep conditioner, which can help reverse damage by restoring moisture, strengthening your strands, and leaving your hair feeling soft and smooth. While it may feel like an extra step in your hair care routine, using a deep conditioner regularly is an investment that pays off with healthy-looking, shiny hair.
To find the best deep conditioners for every hair type and concern, we turned to the experts: celebrity hairstylist Sally Hershberger and professional stylist Michelle O’Connor. They shared key insights on what to look for when shopping for a deep conditioner. We then had our Byrdie Collective group test each product at home for a full month. After analyzing their feedback and evaluating ingredients, texture, feel, and overall performance, we curated this list of the top deep conditioners that truly delivered.
Top Picks
Cécred Moisturizing Deep Conditioner at Ulta$39
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Eva NYC Therapy Session Hair Mask at Amazon$16
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Aavrani Deep Conditioning Hair Mask at Amazon$39
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Bread Beauty Supply Hair-Mask Creamy Deep Conditioner at Amazon$19$13
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Fenty Beauty The Richer One at Sephora$32
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K18 Peptide Prep Detox Shampoo at Amazon
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Kristin Ess Deep Treatment Mask at Amazon$38
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Ouidad Coil Infusion Triple Treat Deep Conditioner at Ulta$38$27
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Pattern Intensive Conditioner at Amazon$29$24
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Pureology Color Fanatic Multi-Tasking Deep-Conditioning Hair Mask at Sephora$44
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Best Overall
Cécred Moisturizing Deep Conditioner
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Deeply nourishes and hydrates dry hair
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Seals the cuticle and leaves hair feeling soft
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Adds definition to all curl patterns
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The strong fragrance may be overwhelming for some
Key Ingredients: Shea and murumuru butter, African oil, hyssop extract | Scent: Temple oud, Australian sandalwood, warm musk, jasmine, violet | Size: 2.5, 10 oz | Sulfate-Free: Yes | Cruelty-Free: Yes
Beyoncé has always been that girl when it comes to hair—whether she’s rocking iconic stage looks, serving on the red carpet, or just walking around NYC, her hair is always flawless. So when she launched Cécred (her hair care line) featuring a moisturizing deep conditioner, my expectations were sky-high, and it did not disappoint. My hair drank this conditioner right up, leaving it softer, easier to detangle, and deeply nourished. The rich, buttery texture melts into my strands easily and smells amazing. After just two uses, I noticed my hair looked shinier, healthier, and more voluminous.
Shauna Beni-Haynes, senior editor with 3C/4A curls: “After using the deep conditioner, my hair feels clean and oh so soft. It’s also made my curls easier to style now that I don’t have lots of frizz and dryness.”
Best Budget
Eva NYC Therapy Session Hair Mask
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Deeply conditions the hair
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Repairs strength
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Makes hair feel softer
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The jar can be tricky to use in the shower
Key Ingredients: Vitamin C, citric acid | Scent: Plum, jasmine, magnolia, amber, bourbon vanilla | Size: 16.9 oz | Sulfate-Free: Yes | Cruelty-Free: Yes
This deep conditioning mask went above and beyond our expectations. Our tester was impressed by how quickly the results appeared—her hair looked smoother and less frizzy, even while air-drying. She also noted that it stayed soft and hydrated for several days after use. The formula is packed with jojoba oil and vitamin B5, powerhouse ingredients known for strengthening and repairing damaged hair. Plus, it has a light, pleasant scent that fades once the hair dries. The brand suggests using it once a week as a treatment.
Austen, tester with straight, 1A hair: “I definitely felt like my hair was soft and silky after using this mask. I even had a hairstylist compliment me on how smooth my hair was after I started using it! My hair was hydrated and would typically stay that way for a day or two until it was time to wash again.”
Best for Dry Hair
Aavrani Deep Conditioning Hair Mask
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Leaves hair hydrated, soft, and shiny
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Reduces frizz and dryness after one wash
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Effective on all hair types, but especially does well with fine hair
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Fragrance may be too strong for sensitive users
Key Ingredients: Mowrah butter, rice protein, biotin | Scent: Soft jasmine blends with fresh citrus and leafy-green top notes | Size: 8.4 oz | Sulfate-Free: Yes | Cruelty-Free: Yes
If your hair is visibly damaged due to excessive heat styling, reach for this deep conditioner. It’s infused with nourishing ingredients, such as biotin and rice protein, to help strengthen and repair damage. It also contains a mix of butters that’ll help moisturize, improve manageability, and smooth hair follicles. The only thing our tester noted was that scooping out conditioner while in the shower can be a bit tricky, but she was so impressed with the results that she was willing to overlook the challenge of the tub.
Lindsay, tester with fine and wavy 2C hair: “I saw a noticeable difference in my hair immediately. I let my hair dry naturally, and my waves appeared smoother and less frizzy. It was easier to brush through and detangle post-shower. Despite the formula feeling thick, it didn’t weigh my hair down; instead, it left it feeling really smooth and bouncy. It was well-suited even for my finer strands.”
Best Lightweight
Bread Beauty Supply Hair-Mask Creamy Deep Conditioner
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The lightweight formula will not weigh down curls
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Gives hair a cloud-like soft touch
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Offers good slip for detangling
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Some users are not fans of the scent
Key Ingredients: Carrot seed oil, kakadu plum, starflower oil | Scent: N/A| Size: 12 oz | Sulfate-Free: Yes | Cruelty-Free: Yes
Bread Beauty Supply’s hair mask is a great option for anyone new to using deep conditioners as a weekly treatment. It’s easy to use, works quickly, and adds shine to dry, dull-looking hair. Our tester loved how light the formula felt; it did not weigh down her curls and left them feeling super soft and moisturized. And while this mask is crafted to be an intensive treatment, it also works great as a conditioner.
Jessica, tester with thick 4C hair: “I have to say I was very impressed with this hair mask! It helped detangle my curls and soften my hair, while keeping it hydrated and moisturized.”
Best for Damage
Fenty Beauty The Richer One
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Deeply hydrates and strengthens hair
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Reduces frizz
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Instantly helps detangle
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The tub can be tricky to use in the shower
Key Ingredients: Wild mango butter, amber bouquet, replenicore-5 | Scent: Warm florals, amber, yuzu, coconut, vanilla, sandalwood | Size: 11.5 oz | Sulfate-Free: Yes | Cruelty-Free: Yes
This multiuse formula from Fenty Beauty addresses multiple hair concerns, including dryness, split ends, heat, and color damage, with a blend of nourishing oils and proteins that detangle hair while leaving it ultrasmooth and shiny. Plus, it’ll make the stands more plump, giving off a thicker, fuller look. The scent is also pleasant but not overpowering, making it a treat to use. Plus, the large size (11.5 ounces) means you get good value in terms of how many washes it can cover.
Saleam, tester with 4C hair: “Immediately after using the product, my hair felt softer and more hydrated. It did help to reduce the appearance of frizz and helped me detangle my hair while in the shower. It improved the appearance of my hair by making it look less frizzy, and it also helped my hair maintain some hydration.”
Best Multitasking Treatment
K18 Peptide Prep Detox Shampoo
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Helps restore elasticity, detangles, and adds shine
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Includes UV protectant
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Deeply moisturizes
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Some users say it can make the hair feel greasy
Key Ingredients: Aloe vera, apricot kernel oil, sweet almond oil | Scent: N/A | Size: 5, 17.5 oz | Sulfate-Free: N/A | Cruelty-Free: Yes
This deep conditioner is packed with keratin to help rebuild and strengthen hair that’s been weakened by color, heat, or chemical treatments. It does a great job at smoothing and detangling, so the hair feels softer and more manageable right after use. It’s color-safe, paraben-free, and even provides UV protection to help shield against sun damage. Use it once or twice a week, especially if your strands are dry or overprocessed, and you’ll notice stronger, shinier hair over time.
Kelsey, tester with 2A hair: “I thought this was an excellent product that performed as advertised, and truly felt to nourish my heat-damaged and dry/frizzy hair. The results were immediate and sustained without creating oiliness or a need to wash my hair more frequently.”
Best for Shine
Kristin Ess Deep Treatment Mask
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Shine enhancing
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Deeply nourishing
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No fragrance
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It may take a few washes to see full results
Key Ingredients: Shea butter, Moroccan lava clay | Scent: None | Size: 6.7 oz | Sulfate-Free: Yes | Cruelty-Free: Yes
This treatment mask is fragrance-free, which is great if you’re sensitive to perfumes or just prefer simpler formulas. It’s designed to give serious slip, making hair easy to detangle, while also offering deep hydration and nourishment. The formula will boost softness and restore shine to dry, dull, or stressed strands. Our tester noted that it made her hair feel so moisturized, and she noticed her hair looked even wavier than before. Plus, it comes from a stylist-tested, salon-quality line, so it’ll feel like a pampering professional treatment in your own shower.
Nicolette, tester with long 1A/2B hair: “I love when my scalp feels squeaky after I shampoo. The squeak was REAL with this one. I felt like my hair was VERY clean after each use.”
Best for Coily Curls
Ouidad Coil Infusion Triple Treat Deep Conditioner
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Rich formula crafted for coily hair
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High-slip formula
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Infuses hair with deep moisture
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The lid can be hard to unscrew at times
Key Ingredients: Black castor oil, avocado, apple cider vinegar | Scent: Peppermint | Size: 11 oz | Sulfate-Free: Yes | Cruelty-Free: Yes
If your coils have been lacking their typical spring and bounce, this deep conditioner will give them the deep hydration and moisture they need. The formula is infused with natural oils, botanicals, and black castor oil to help restore moisture and strengthen fragile strands. Our tester noticed better curl definition and less breakage after a few washes. The texture is very thick and rich, and it gives good slip for detangling. Although it’s designed for more intense repair, it’s clean, cruelty-free, and packaged in a way that feels premium without the price being overwhelming.
Ashley, tester with 2C hair: “I love the way this product leaves my hair feeling hydrated and moisturized but not weighed down from a heavy deep conditioner.”
Best for 4B-C Curl Types
Pattern Intensive Conditioner
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Curl-enhancing
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Color-safe
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Softens curls
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May be too rich for loose curl types
Key Ingredients: Safflower seed oil, jojoba oil, avocado oil| Scent: Sweet floral neroli, rose, patchouli | Size: 3, 13, 29 oz | Sulfate-Free: Yes | Cruelty-Free: Yes
Tracee Ellis Ross knows great hair—just look at her beautiful voluminous curls, and one of the products she swears by for thick, healthy, and bouncy ringlets is this intensive conditioner. It has a very rich formula and a thick, creamy texture that moisturizes and nourishes well. The brand notes that the formula is ideal for those with tighter textures and low porosity hair, so we don’t recommend it for anyone with looser curl textures.
Tameka, tester with 4B/C hair: “Before using the product, my hair appeared dry and dull, and after using the product, my hair was voluminous and moisturized, especially the color-treated areas. This product performed well on my hair type and left my curls feeling great.”
Best for Color-Treated Hair
Pureology Color Fanatic Multi-Tasking Deep-Conditioning Hair Mask
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Color-safe
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Reduces Frizz
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Offers heat protection
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Some users note the bottle is too small for the price
Key Ingredients: Camelina oil, coconut oil, olive oil | Scent: Rose and floral ginger | Size: 3, 13, 29 oz | Sulfate-Free: Yes | Cruelty-Free: Yes
Pureology’s take on deep conditioner is this transformative, ultra-moisturizing mask that promises to strengthen color-treated hair and protect it from future damage. It’s a favorite among shoppers thanks to its aromatherapy fragrance, its ability to smooth frizz, and its effectiveness in reducing split ends over time. It utilizes camelina oil, olive oil, and coconut oil to work its magic, and when used as a weekly treatment, it truly enhances the appearance and texture of your hair. It has a creamy but thick texture that’s easy to work into the hair, but it takes a while to see results, so hang in there and be consistent—it’s totally worth it.
Evangelina, tester with wavy 2A hair: “I don’t deal with tangling, but it did reduce frizz. It improved the appearance of my dry tresses. The product was definitely well-suited for my hair type and my concerns with dullness and flatness.”
Best Unscented
SEEN Fragrance Free Deeper Conditioner
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Formulated without fragrances
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Reduces frizz
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Keratin-safe
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Doesn’t give a silky finish compared to other formulas
Key Ingredients: Bisabolol, hemisqualane | Scent: None | Size: 2, 8.5, 32.5, 32 oz | Sulfate-Free: Yes | Cruelty-Free: Yes
Seen’s Deeper Conditioner is safe for all skin types, including sensitive, acne-prone, and even eczema-prone, thanks to its noncomedogenic formula that supports both healthier hair and skin with every wash. Its rich, creamy texture is especially great for dry hair that craves extra hydration. With regular use, you can expect less breakage and frizz, plus more shine and overall better hair health. One of our testers also found that it made detangling a breeze and left her hair looking fuller and more voluminous once dry.
Brittany, tester with straight, fine hair: “The product left my hair feeling strong and voluminous. After using this deep conditioner, I noticed my hair had more body and was less frizzy, making it more manageable overall.”
What to Look for in a Deep Conditioner
- Strengthening Properties: In addition to moisturizing benefits, O’Connor recommends reaching for a product that also has strengthening properties. She explains that lackluster hair in need of repair is usually experiencing some degree of breakage, and proteins and nourishing oils can help strengthen it. Keratin and argan oil are two great examples of fortifying ingredients to keep an eye out for.
- Consistency: While you’ll want your deep conditioner or hair mask to hydrate and strengthen your hair, you don’t want it to leave it oily or weighed down. Look for formulas that will ramp up hydration while still providing a lightweight finish sans any heavy or sticky residue. If your hair tends to get weighed down easily, we recommend opting for a mist.
- Format: Ultimately, the best deep conditioner is one you’ll actually use. While masks are great options for an in-shower treatment, those tight on time might prefer a leave-in formula. If you’re big on everything showers, a rinse-out conditioner or luxurious mask might be right up your alley.
How We Tested Deep Conditioners
First, we recruited a team of testers by having them test their household water to ensure it is hard. In order for all of that gunky buildup to be gone—and to put the contenders to the test—our testers used a specific clarifying shampoo over a four-week trial period. Each product was used once a week, unless the packaging stated otherwise:
- Number of Deep Conditioners Tested: 11
- Testing Period: Four weeks
- Methodology: We tested deep conditioners for four weeks, using each option at least once a week. Our testers had different hair types and concerns, and they paid attention to which options thoroughly cleansed their hair without stripping or causing irritation, but also had other benefits, such as shine and hydration.
- Factors Considered: Application, effectiveness, hydration, and texture
Meet Our Experts
To learn more about what to keep in mind when shopping for a deep conditioner, we consulted the following experts.
- Michelle O’Connor is a professional hairstylist based in Miami. She is the Artistic Director at Matrix, an Ulta Beauty Pro, and a five-time North American Hairstyling Awards winner.
- Sally Hershberger is a celebrity hairstylist with salons in New York and Los Angeles. She’s known for her eponymous line of hair products and has appeared on the Bravo reality show Shear Genius.
Why Trust Byrdie
Shauna Beni-Haynes is a senior editor at Byrdie with thick, naturally curly hair. She tests dozens of hair products throughout the year and works to find the best picks for readers across makeup, fragrance, skincare, hair care, and fashion. She also works with the Research and Testing team to select products for testing, review insights, and assign stories to writers.
Alyssa Kaplan is an editor, an experienced writer in the beauty industry, and a product tester specializing in cosmetics. She has fine, damaged hair and has been using and testing various deep conditioners for years. She received a bachelor’s degree from the Fashion Institute of Technology, where she studied marketing and product development in the cosmetics industry as well as fashion business marketing. Alyssa has been at Byrdie since 2022, where she covers all things beauty.
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