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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

1,143 Reviews

5

4

3

2

1

887

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Recent Reviews

jennaaa8

Verified Buyer

5

3/6/2026

The cure to thinned and damaged hair.

I had this once before and spilled half of it, but with what I did use out of it—I loved the results so I got more lol! It seemed like my hair was growing longer and thicker every time I woke up after using it!

Recommended

Originally posted on sephora.com

Maddiepelle

1

3/6/2026

Waste of money. Marketing gimmick.

Probably one of the worst hair oils I have ever used. It left my thin damaged hair extremely oily and made my breakage very visible. Terribly over priced to what seems to be comparable to coconut oil from Wallgreens. Deeply disappointed.

Originally posted on sephora.com

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