K18 Hair

K18 Hair | Biomimetic Hairscience


K18 is a biology-first haircare brand, powered by biotech. Using the power of nature and human biology, K18 unlocks new solutions to the biggest challenges in haircare — all while delivering a healthy canvas for hair expression. K18 creates purposeful products that are simple, effective, and biocompatible. 

10 products

K18PEPTIDE™ repairs hair at a molecular level across multiple types of bonds including polypeptide chains and disulfide bonds to reverse damage from bleach, color, chemical services, and heat. Developed through biotechnology, the K18PEPTIDE™ is optimized for human biology and uniquely matches and clicks into hair’s keratin structure, reconnecting damage sites at the molecular level, K18PEPTIDE™ delivers durable repair for all hair types, restoring strength and elasticity.


This peptide was designed in accordance with a less-is-more formulation philosophy to simplify and minimize steps in hair routines. This biomimetic molecule laid the foundation for a biology-first approach to haircare and works in just four minutes, with no extra steps, and with results shown from the very first application.

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