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K18 Biomimetic Hairscience
Get hair like new* with K18's biology-first haircare, designed to make the impossible possible.
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Reviews
Recent Reviews
ivanabcastro
5
10/31/2025
Love this product!
[This review was collected as part of a promotion.] Totally worth it if you style your hair with heat a lot! This product really smooths things out and protects from frying it. My hair feels soft, shiny, and my blowdry didn’t feel so crisp. If your hair’s fine, go easy though!
Originally posted on sephora.com
alexisvacoba
5
10/30/2025
Must have!
[This review was collected as part of a promotion.] K18 always has the best products. I use this to help protect my hair before using any heat products. I love that it's also a leave in conditioner leaving my hair feeling amazing while having it be protected!
Originally posted on sephora.com