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16

Hrs

19

Min

56

Sec

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

4,939 Reviews

5

4

3

2

1

3297

745

269

184

444

Recent Reviews

lxscott

Verified Buyer

5

3/17/2026

A now must-have in my hair routine!

I tried the K18 Leave-In Molecular Repair Hair Mask after coloring my hair and used it for my first four washes as recommended. It was super easy to use, just applied it after shampooing and skipped the conditioner. After a few uses, my hair felt noticeably softer, smoother, and less damaged. By the fourth wash, it looked healthier overall without feeling weighed down. Definitely worth it if you want a simple, effective repair treatment!

Recommended

Originally posted on sephora.com

ZOOBOO

Verified Buyer

5

3/16/2026

Unfortunately a must have

I was praying to God i wouldn’t like the product because of how much it costs but it really is that girl. After a course of this i feel like i have the hair of my dreams

Recommended

Originally posted on sephora.com

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