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K18 = Sephora

K18 Biomimetic Hairscience

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

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Reviews

4.5

539 Reviews

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Recent Reviews

CJiang

1

9/11/2026

Not for me

(This review was collected as part of a promotion.) I got a free sample of this. It's a no for me. It made my hair heavy.

Originally posted on sephora.com

Klc15

Verified Buyer

2

9/9/2026

Eh

For reference-I have a lot of hair but it’s fine. I sprayed the product on and then blow dried. I am not impressed with how it has made my hair feel. It’s made it feel a little heavy, dry, and “waxy”. Seems like it should be a great product. Not sure if I will keep it. As I may sacrifice the feeling of my hair for true heat protection.

Originally posted on sephora.com

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