K18 Leave-In Molecular Repair Hair Mask

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.

Dos and Don'ts:

• DO clarify before K18 if you’re a heavy product user (demineralize for mineral + metal buildup).
• DO apply on clean, damp hair.
• DO wait the full 4 minutes before combing or styling.
• DO add whatever styling products you love after the 4 minutes.
• DO use for 4-6 shampoos consecutively for progressive results.
• DON'T use conditioner before applying K18 Mask (you can apply after the 4 min but most find they don’t need it).
• DON'T overdo it—less is more.
• DON'T rinse it out.