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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

1,167 Reviews

5

4

3

2

1

905

106

54

31

71

Recent Reviews

rusulsf

5

6/5/2026

Perfect post-blowout oil to lock in smoothness and

I absolutely love this hair oil! I always use it right after blow-drying my hair as a finishing touch. It works amazingly well to maintain the smoothness of my ends and ensures that there is absolutely no frizz left behind. It leaves my hair looking super sleek, shiny, and feeling incredibly soft without weighing it down. It’s definitely a premium product that is worth every penny for blowout maintenance!

Recommended

Originally posted on sephora.com

Helen

3

5/30/2026

Didn’t live up to the hype !

I was disappointed with this product. It really didn’t do much. Ok tame frizzy hair as a temporary measure but no better than products which are significantly cheaper on the market

Originally posted on Sephora-uk

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