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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

4.6

490 Reviews

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Recent Reviews

maryy1997

Verified Buyer

2

3/17/2026

I bought this after reading all the reviews but honestly it didn’t not work for me. I have long wavy hair, it made by hair dry and it felt heavy on my hair.

Originally posted on sephora.com

dreamerx90

Verified Buyer

5

3/17/2026

It Works!

I have fine, dry, colored hair, that I blow dry and style often and this made it so much softer. I was worried about damaging it further, but it's better than it ever has been. It does what it claims. I did see reviews that stated it weighed fine hair down, but this has not been my experience.

Recommended

Originally posted on sephora.com

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