The K18 Leave-in Molecular Repair Hair Mask of 50 ml is a revolutionary treatment that regenerates the internal struttura of damaged hair. Thanks to the patented K18Peptide™ technology, it deeply repairs hair fibers, improving elasticity, softness, and strength. Easy to apply without rinsing, it provides immediate vitality and protects against daily damage. Perfect for those seeking a professional result at home, it transforms fragile hair into strong, silky, and visibly healthier locks. Ideal for all hair types.