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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

4.1

284 Reviews

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Recent Reviews

AnitaY

3

4/18/2026

40/60 purchase

One thing I really liked is how well it cleans my scalp—especially before going in with a hair mask. It leaves my scalp feeling fresh without that overly stripped, squeaky feeling you get from harsher shampoos, which I appreciated. That said, I did notice that at times my hair felt a bit dry and slightly weaker after using it. Because of that, I found it works best when you’re mindful of how much you use. A little truly goes a long way, and I had better results doing a lighter first wash followed by a slightly more thorough second shampoo. I’d recommend this shampoo for people who struggle with oiliness or have damage and breakage, since it does a good job at cleansing without completely compromising the hair. I used it long enough to see a slight improvement in my hair’s overall condition, which is a plus. However, despite the benefits, I’m not completely sold on repurchasing it. It works well, but for me, it didn’t quite stand out enough to become a staple.

Originally posted on sephora.com

Andreja

5

4/16/2026

Clean scalp!

I struggle a lot with finding shampoos that don’t leave my hair greasy, but this one is magic. The entire K18 line has saved my hair.

Originally posted on Sephora-uk

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