Reverse the damaging effects of everyday stressors with the K18 Leave-In Molecular Repair Hair Mask. This restorative hair mask works wonders on dry and damaged hair types, helping to revitalise stressed-out strands that require a little extra TLC. Working its magic within as little as four minutes, this mask repairs damage caused by heat, bleach, chemicals, and environmental aggressors. Get your hands on smoother, bouncier hair within minutes! Featuring the brand's patented K18Peptide™, this mask travels deeper into the inner layers of the hair to fix broken keratin chains and ensure a professional level of hydration.