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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

4.3

431 Reviews

5

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2

1

290

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Recent Reviews

Nicki

5

6/21/2026

Recommend but use more than you think

On the first use of this I wasn’t sure it was doing anything for me but after a visit to the hairdressers who used much more than I was using, I am in love with the results

Originally posted on Sephora-uk

coolchloe15

Verified Buyer

1

6/16/2026

Not for me!

I am a huge K18 fan. Love all their products, but this did literally nothing for my hair. I applied at the root and blow dried and got zero results. I tried using it 3 times after each wash and each time it did nothing for my hair. Perhaps it only works for certain hair types? I have very thick curly hair.

Originally posted on sephora.com

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