Shop online with your Sephora Gift Card!

Now you can pay using your Sephora Gift Card at the checkout! Discover

K18 = Sephora

K18 Biomimetic Hairscience

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

Shop Now

Reviews

4.7

448 Reviews

5

4

3

2

1

372

37

15

9

15

Recent Reviews

HanaBH

Verified Buyer

2

12/16/2025

Wanted to love this

Really wanted to like it. Spray isn’t a fine mist so on dry hair it gets wet and feels a bit greasy after. Personal preference but I cannot stand the smell of this product either

Originally posted on sephora.com

CandaceChelle

5

12/15/2025

#1 fav hair product

My hair feels almost like a new and improved texture after using this - silky smooth and virtually frizz free. Feels like I’ve gotten a fresh Cezanne frizz treatment when I use this. #1 fav hair product

Recommended

Originally posted on sephora.com

Home

Shop

Stores

Account