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K18 = Sephora

K18 Biomimetic Hairscience

Get hair like new* with K18's biology-first haircare, designed to make the impossible possible.

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Reviews

4.3

5,134 Reviews

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Recent Reviews

Xoxoroya

5

9/30/2026

I’ve been using this for over two years and I’m on my third bottle. My brother who is a hairstylist recommended it to me. It has made a huge difference in my hair. My hair looks much more healthier and I’m barely losing hair in the shower. I used to lose a lot of hair in the shower.

Recommended

Originally posted on sephora.com

Elana

5

9/21/2026

nice

love this and it really helps reduce frizz and promote shine! hair feels great after but you definitely shouldn’t use it regularly as too much protein on the hair can make things worse! but it’s great to use after getting hair dyed/bleached

Originally posted on Sephora-uk

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