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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

4,706 Reviews

5

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2

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719

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Recent Reviews

jsgc

1

7/25/2025

Shouldn’t be on the market

Don’t buy this product. Unless you have the right hair type for it (who knows this? I didn’t) it will slam so much protein into your hair that your strands will stretch and snap. I used it twice—followed the directions to a T—and the breakage is outrageous. breakage

Originally posted on sephora.com

noturbae24k

5

7/24/2025

Miracle in a Bottle

I just bought the mini and used it once today. My hair is already looking so much better. I’m so excited to keep using it. Will definitely have to purchase the full size. My hair is bleached. Been getting highlights, dyed, and balayages for years. This product is well worth the investment.

Recommended

Originally posted on sephora.com

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