K18 = Sephora

K18 Biomimetic Hairscience

Get hair like new* with K18's biology-first haircare, designed to make the impossible possible.

Shop Now

Reviews

4.5

1,135 Reviews

5

4

3

2

1

881

104

51

31

68

Recent Reviews

JennyNae

5

1/19/2026

Amazing hair oil=amazing results!!

Amazing product! If you use as directed you will receive beautiful results! One of the best hair oils I have ever used! I love trying all the new & latest products out there, but I always come back to this one every single time! Totally worth it!

Recommended

Originally posted on sephora.com

enidm

1

1/18/2026

Meh not worth it.

Not worth it. I have thin dark brown hair highlighted blonde. I've been using it regularly for months. I really wanted it to be great because I did notice a difference with the shampoo+conditioner+mask routine but there was no change with this product on dry or wet hair. It instead made my hair feel less slick and smooth and more rough with friction. It looked more dry to a point, then just looked greasy but never hydrating. I preferred olaplex oil Moroccanoil oil over this.

Originally posted on sephora.com

Home

Shop

Stores

Account