The K18 Leave-in Molecular Repair Hair Mask is 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 and colour, chemical services and heat* – with immediate and lasting results to restore strength, softness, smoothness and bounce to hair.

91% original strength*
94% original elasticity* 94% original elasticity*