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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

4.3

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Recent Reviews

flvi91

Verified Buyer

1

2/23/2026

made my hair feel horrible!! made it feel like it wasn't washed in weeks even though it was just washed and trying to brush my hair before my next wash made my hair come out. Too expensive for this to happen!

Originally posted on sephora.com

Serpil

5

2/20/2026

10/10 - Highly recommend

This is a great hair care product, really helps with repairing damage. You do need to ensure you rub your hands together to get a white paste, then work it in to the ends. I have found that this has really helped my hair, it is so much more stronger now and I love to bleach my hair! Totally worth it and it lasts a long time considering I use it every other day to every three days depending on hair wash schedule.

Originally posted on Sephora-uk

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