K18 Leave-in Molecular Repair Hair Mask

K18 Biomimetic Hairscience Leave-in Molecular Hair Repair Mask .5 oz./15 ml. 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. Allure Best of Beauty NEW IN BOX.