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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
Lauren
4
8/5/2026
Bottle only lasts a few uses
I do love this and see a difference when I use it but I got through this soooo quickly I was shcoked. It says use 3 pumps but I have a lot of long, fine hair and I needed about 6 pumps to feel like it made a difference. Very disappointing it is so expensive for such little product
Originally posted on Sephora-uk
304ashley
Verified Buyer
1
8/4/2026
Fine and Low Porosity Beware
Got this after getting some bleaching done hoping to counteract some damage, instead this damaged my hair more. I was convinced that I fried my hair with bleach but it was this product instead. My hair was really dry and brittle after using, and it caused me a lot of breakage. I returned this and got a moisturizing hair mask instead, and my hair was back to normal. I followed the directions and all. I do not recommend for fine, low porosity, and/or protein sensitive hair.
Originally posted on sephora.com