Get Them First!

Discover limited-edition holiday sets you’ll want to shop early Shop Now

K18 = Sephora

K18 Biomimetic Hairscience

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

Shop Now

Reviews

4.3

4,772 Reviews

5

4

3

2

1

3181

727

258

180

426

Recent Reviews

Saaaashaaaaaa

4

11/6/2025

Smells bad

Just started using it, so idk yet about the long term effect however a warning for your people special edition stinks like a mix of plastic with gasoline

Originally posted on sephora.com

anteater00

5

11/4/2025

Fine, breakage prone hair approved!!

I have tried so many different products that claim to repair damage over the years and have never really been wowed by them. I’ve been using K18 for about 3 months now and it’s made a huge difference in the amount of split ends I get and length retention. I have fine thin hair that is easily weighed down, but using 2-3 pumps of this leaves my hair so soft and non-greasy. I don’t have bleach damage anymore, because i’ve grown my natural color out. However even my natural fine hair breaks sooo easily and this has helped it preserve length. I still get some breakage but I think that’s just the nature of having fragile hair strands. i think it’s worth the price and i have never been someone who would pay such a high price for hair care!!

Recommended

Originally posted on sephora.com

Home

Shop

Stores

Account