K18 Biomimetic Hairscience
Get hair like new* with K18's biology-first haircare, designed to make the impossible possible.
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Reviews
Recent Reviews
Marwa
4
4/25/2026
Not for everyone but it works
I used this for more than 8 washes on both my hair and my daughter’s. Honestly, the results were very different. On my hair (fine & light), it felt a bit heavy and didn’t give the best result… even though I followed the instructions exactly. But on my daughter’s hair, it was a completely different story, her ends looked healthier, frizz was reduced, and it actually felt like it repaired her hair.
Duration of Use: 3 months
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desormais
Verified Buyer
5
4/25/2026
Definitely recommend for processed hair
Was gonna wait to try this a few more times before reviewing, but was so impressed and exceeded my expectations that I’m compelled to review it now lol. My hair is less than 50% bleached from ombré process months ago, was doing pretty well with bond treatments and purple toning products regularly until last month or so. Finally caved and got this in the mini size to try first. Wow. I did overdo my first wash with more than the initial 3 pumps recommended, but my hair already feels noticeably different after first use. I’ll def invest in the bigger size soon. Even the mini could last a while if I just use 3 pumps or less each wash, and I only wash 2x or less a week.
Originally posted on sephora.com