[Scientific Discovery - Molecular Repair] When hair is damaged, its struttura molecular structure made of peptides deteriorates. Damaged hair becomes gummy and loses movement. Most peptides, made up of amino acids and peptide bonds, are too large to be reinjected, causing damage of this size to be almost irreversible. Scientific discovery, absolute molecular repair. Repairs 2 years of damage in one application*. For the first time, advanced research L'Oréal has managed to break down the peptides, to reinject their components separately within the fiber **. Una Once inside, they reform and reconstruct the struttura molecular structure of the hair ***.