I can embrace frizz and tackle a little extra oil, but there is nothing sadder to me than a flat hair day. K18 feels my pain, but instead of listening to me whine and looking at my limp strands in shared agony, they’re helping me do something about it.

On February 25, the peptide-powered brand announced their latest styling innovation, the body and bounce-enhancing AstroLift Volumizing Spray (available to shop on March 4). Featuring their patented K18PEPTIDE, it offers your hair a physical boost while also addressing underlying hair health issues.

Ahead, everything you need to know about your new favorite spritz—including our honest review.

The Inspiration

There’s no shortage of volume-boosting products in the hair world, but they rarely do as much inner cuticle work as they do the surface-level, outer work. If you don’t already know, the famous K18 peptide contains the exact right size and molecular structure to penetrate your hair’s deepest layers and repair the broken keratin chains (they’re responsible for strength and elasticity!) that live there.

Thus, K18 wanted to use their famous technology to level up that visible body and bounce (clinical results showed it delivered up to 2.5X more volume) while also repairing hair from within.

The Formula

Alongside that famous peptide, AstroLift is enriched with naturally derived seaweed and an amino acid complex. Benefits (especially for fine, aging, and damage-prone hair) include protein loss and chemical damage repair, humidity resilience, and a texture that doesn’t weigh your hair down or leave any residue behind.

After spritzing, you’ll have a lightweight, touchable finish and up to two days of lasting volume. You can use the spray on wet hair before styling, or on dry hair as a refresher.

Our Review

“To be so real, I’ve been using K18’s Airwash Dry Shampoo as a volumizing spray for months. I know it’s a dry shampoo and it works really well as a dry shampoo—but it does also give me a nice lift at the root. With that being said, I was skeptical that a true volumizing spray could make enough difference to warrant adding a whole new product to my routine—but I was 100% incorrect. Astrolift gives me true, airy, weightless volume (rather than a little lift from the sheer texture of dry shampoo). You can really see it with the lowercase “m” shape of my curtain bangs—that’s from applying the product a day before, and those babies don’t seem to be falling flat anytime soon.” —Holly Rhue, editorial director