4-minute leave-in treatment to reverse hair damage

A leave-in treatment mask for all hair types that clinically reverses damage in 4 minutes. The patented peptide technology works to repair damage from bleach, color, chemical services & heat – restoring strength, softness, smoothness, and bounce to hair.

• DO use a clarifying shampoo if you’re a heavy product or dry shampoo user to remove buildup and help our peptide penetrate and get where it needs to go.
• DO wait the full 4 minutes before styling or applying other product
• DO use every 4-6 shampoos consecutively to see and feel ongoing results

• DON’T condition your hair before application (trust us, most won’t need it after K18, if you still need, add a leave-in after the 4-minute window is up post-application)
• DON’T overuse, a little goes a long way.
• DON’T rinse out. This is a leave-in, so you know, leave it in!