Discover The Holiday Collection

Limited-edition sets, iconic bestsellers, and festive must-haves - shop them all. 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

4.5

546 Reviews

5

4

3

2

1

422

48

25

22

29

Recent Reviews

linzz99

Verified Buyer

5

10/22/2026

yes

I purchased the big one after trying the mini. It's works so well! really feels like it protects and my fine wavy hair stays straight all day

Recommended

Originally posted on sephora.com

Ava415

2

10/9/2026

awful smell

can't tell if this actually works better or worse than any other creamy heat protectant - the smell is genuinely AWFUL. Wish I returned it.

Originally posted on sephora.com

Home

Shop

Stores

Account