This leave-in treatment is suitable for all hair types and clinically reverses damage in just 4 minutes. Powered by K18 peptide technology, it repairs damage caused by bleach, colour, chemical treatments, and heat, restoring strength, softness, smoothness, and bounce to your hair. Why will I love the K18 Leave-In Molecular Repair Mask? * Damage-reversing treatment for compromised hair * Works in 4 minutes * Treats damage from styling, colouring and lightening * Patented bioactive peptides * Repairs keratin within the hair * Do not rinse out * Softens, smooths and detangles