K18 have patented a miracle molecule which carries amino acids into the cortex of you hair to reconnect keratin chains and rearrange disulfide bonds, bringing damaged strands back to their original, youthful state. K18Peptide is the breakthrough molecule haircare was waiting for, and has been clinically proven to reverse damage in just 4 minutes. It repairs and restores strength, softness, smoothness and bounce – for hair like new.