Unlock your gifts

K18 Biomimetic Hairscience
Get hair like new* with K18's biology-first haircare, designed to make the impossible possible.
Shop Now
Reviews
Recent Reviews
Goldieg26
Verified Buyer
2
7/22/2025
Caused hair loss
Loved the texture it left my hair with, but it ended up causing a lot of hair loss and was too late to return.
Originally posted on sephora.com
Becky
5
7/21/2025
Amazing but not for weekly use
This is one of the best clarifying shampoo that I’ve used. I use this every third wash (I wouldn’t recommend using any more than this as it can make your scalp dry and strip your hair of its natural oils), and I can really see the benefit to my scalp health and my hair just feeling cleaner.
Originally posted on Sephora-uk