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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

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Recent Reviews

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5

6/13/2026

Worth the money:)

I brought this a few weeks ago ! I’ve had significant breakage and tangled hair. So when I overheard someone talking about this product I was like I’ve got too give it a try. I’ve used it 3 times now and noticed how much easier my hair is to brush and obviously it’s too early to see if it helps with the breakage but I have high hopes that it will help and the texture has felt great all week.

Originally posted on Sephora-uk

vroywarren

1

6/12/2026

Not for me

Read the directions, followed the directions. Re-read the directions (they are a bit unique). It did absolutely nothing for me. I have tried twice with this one. Comes in very small amount and does not last long. I don't think the amount lasted me a month and I have short hair. My hair is coarse and curly, think a 3C. I am caucasian with a smidge latino. My hair is extremely frizzy. I had recently bleached it, but then cut it all off as hair was dead. I also had tried product before bleach. I didn't notice much of a change, if any. I thought it was going to be my miracle potion. This one ws not for me.

Originally posted on sephora.com

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