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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

4.5

1,183 Reviews

5

4

3

2

1

913

107

56

32

75

Recent Reviews

692006

1

9/18/2026

reformulated? smells bad and feels heavy

[This review was collected as part of a promotion.] I tried this back in 2025 and loved it - it smelled it so good and had a very lightweight feel on my fine hair. Did a great job with frizz control and added some shine. I just tried it again this month, and for some reason it smells bad and feels heavy and siliconey on my hair. Not sure if they reformulated... whatever is going on, I was considering purchasing it and now I am not. Pretty displeased with the results of this oil - for that price point you should be getting a much higher quality product!

Originally posted on sephora.com

Camilledream

5

9/14/2026

Perfect Pick-Me-Up for Vivid Hair!!

I’ve been using this for about a month and I’ve already noticed such a good difference in my hair health! I have pastel pink hair so it needs all the hydration it can get, especially after touchups! This has really helped with dryness and breakage, it’s now a staple in my routine!

Recommended

Originally posted on sephora.com

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