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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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Unknown

Verified Buyer

5

5/29/2025

Magic

I’ve used it 3 times so far and I can feel the difference in my hair. I recommend doing research on how best to use it as the instructions aren’t great. Abbey Yung has some great YouTube videos

Originally posted on Sephora-uk

dontaskkrispyy

4

5/29/2025

Only used it once, felt a difference.

I used it once (albeit too much apparently). I have waist length 3a-3c hair and finished the entire bottle with some hair left to spare. I left it in for maybe 30 mins and put on a heat cap (idk if it did anything more) then proceeded to do my deep conditioning then style my hair I felt a big difference between my hair with K18 on it and the apogee two -minute treatment (I used it on the hair remaining). My hair was much smoother and felt more manageable. I will continue to use this and will start using the trial k18 hair oil on my ends.

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Originally posted on sephora.com

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