K18 Leave-In Repair Hair Mask in the 50ml size is a highly concentrated, advanced treatment designed to restore and strengthen damaged hair. Infused with a patented peptide technology, this leave-in mask repairs and rejuvenates hair at a molecular level, reversing damage from chemical treatments, heat styling, and environmental factors. Applied after washing, it works to improve hair elasticity, reduce breakage, and enhance overall health without rinsing out. Suitable for all hair types, this mask leaves hair feeling smoother, stronger, and more resilient with each use.