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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

4.0

14 Reviews

5

4

3

2

1

9

2

0

0

3

Recent Reviews

aeroberts

Verified Buyer

5

9/7/2026

The healthiest my dyed blonde hair has ever looked

I have this set plus the volume spray and I have to say I’m extremely happy with how shiny, bouncy, thick and healthy my hair looks. Before this product, my fine thin hair looked damaged and had no shine. I bleach it and abuse it daily heat styling, and this makes it look like hydrated, virgin hair. Also I’ve tried protein products and olaplex, but both made my hair feel stiff and straw-like. Not the k18! I love it.with

Recommended

Originally posted on sephora.com

Denisesm

Verified Buyer

5

8/24/2026

The leave in molecular hair mask is a must for me

After using this product over a few weeks I have noticed a big improvement in my hair hydration. I have naturally curly hair that is bleached and was very dry/brittle. My curls are back and look healthier.

Recommended

Originally posted on sephora.com

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