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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
aeroberts
Verified Buyer
5
9/7/2026
The healthiest my dyed blonde hair has ever looked
I have this set plus the volume spray and I have to say I’m extremely happy with how shiny, bouncy, thick and healthy my hair looks. Before this product, my fine thin hair looked damaged and had no shine. I bleach it and abuse it daily heat styling, and this makes it look like hydrated, virgin hair. Also I’ve tried protein products and olaplex, but both made my hair feel stiff and straw-like. Not the k18! I love it.with
Originally posted on sephora.com
Denisesm
Verified Buyer
5
8/24/2026
The leave in molecular hair mask is a must for me
After using this product over a few weeks I have noticed a big improvement in my hair hydration. I have naturally curly hair that is bleached and was very dry/brittle. My curls are back and look healthier.
Originally posted on sephora.com