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A leave-in treatment mask that works on the molecular level to reverse hair damage in just 4 minutes. The K18PEPTIDE™ is clinically proven to repair damage from bleach + color, chemical services and heat* – with immediate and lasting results to restore strength, softness, smoothness and bounce to hair.


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K18PEPTIDE™ is a biotech-developed peptide that mimics hair's structure to reverse damage by reconnecting polypeptide chains and disulfide bonds broken during bleaching, color and chemical services + heat


pH-optimized (5.0-6.0) to help minimize cuticle swelling + put hair proteins in their most resilient state


Cream format enables easy, lightweight application across all hair types, with detangling and softening benefits


Vegan, color-safe, cruelty-free

K18 Leave-In Molecular Repair Mask

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