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From Hair Fall To Frizz, Curls To Repair. Sephora Has Every Hair Concern Covered.Shop Now

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

5,119 Reviews

5

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3

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3422

764

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Recent Reviews

Ilona

4

8/31/2026

Good but pricey

Great for repairing bleached hair but not amazing enough to warrant the price tag

Originally posted on Sephora-uk

Mozma

5

8/31/2026

Strong and soft hair

Perfect for damaged hair. Hair feels so soft and strong after continuous use.

Originally posted on Sephora-uk

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