K18

4.5 • 41 Reviews

K18 sells peptide hair care products to reverse hair damage.

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K18 Reviews

4.5

K18 earns strong reviews for visibly repairing damage and boosting shine and softness—especially on bleached, heat-styled, or frizz-prone hair—yet feedback is mixed on the leave-in mask’s results for healthy hair. Reviewers praise the lightweight oil, innovative AirWash dry shampoo, and fast, non-greasy finish, while noting drawbacks like potential heaviness or clumping if overused, harsh shampoos for some, residue and limited longevity from AirWash, and occasional scent and buildup concerns.

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  • Recently picked up two K18 products: the Leave-In Molecular Repair Hair Mask and the HeatBounce Conditioning Heat Protectant. The standout for me is the mask, which really helps to manage the inevitable frizzy texture of my natural hair. It helps when I use it to get a much smoother texture and a nice smell as well.

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  • I LOVE this hair oil. It's lightweight and leaves my hair looking smoother and shinier without feeling greasy or weighed down. A few drops are enough to help tame frizz, smooth flyaways, and add a healthy-looking finish. I also noticed that my hair felt softer and looked less dry after regular use. The formula absorbs quickly, so it doesn't leave behind an oily residue, and a little goes a long way. The only negative I will say that it smells like chlorine which isn't great, and there are a lot of unnecessary perfuming ingredients in it.

  • The K18 AirWash is one of the more unique dry shampoos I've tried, since it's not dry at all. It actually comes out in a liquid spray instead of the usual powdery spritz other dry shampoos have. I liked that it didn't leave a noticeable white cast, which made it easy to use without extra brushing or blending. The scent is fresh but not overwhelming. But I didn't feel like it quite matched the efficacy of other dry shampoos on the market.

  • My hair stylist recommended this product after an intense bleaching session. My hair does feel smoother after use but at this price point I was expecting something worth a miracle. I’ll use until it runs out but will wait to repurchase until I stop using for awhile and feel the effects.

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What is K18?

K18 sells peptide hair care products to reverse hair damage.