Leave-In Molecular Repair Hair Mask | K18 ≡ SEPHORA

Long-lasting makeup, 4 steps away!

Prep, Sculpt & Lock for flawless makeup all day every day 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

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4,661 Reviews

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Recent Reviews

Evie

5

5/16/2025

I’m addicted

This is life changing my hair has never been so healthy and it white blonde

Originally posted on Sephora-uk

psr25

4

5/15/2025

Love

Love! Immediately makes my hair softer and curls more defined.

Recommended

Originally posted on sephora.com

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