Repairs & protects hair. ​ Heat protection up to 230°C. When hair is damaged, its molecular structure, composed of peptides, is compromised. Hair breaks, becomes too elastic, with no movement.But most peptides are too big to be reinjected into the fiber, making damage almost irreversible.For the first time, L’Oréal Advanced Research achieved to decompose peptides, to inject their components separately into the fiber². Once inside, they reform & rebuild the molecular structure of the hair³. For all damaged hair textures, color-treated, lightened & natural hair. This patented shampoo, formulated with Peptides bonder + 5 Amino acid, repairs hair macro-molecular structure¹. Hair is stronger and nourished, with improved elasticity, movement2 and + 86% smoothness3. 1Amino acids & peptides bonder.2Instrumental test after application of pre-treatment + shampoo + rinse-off serum + 4x(shampoo + rinse-off serum).3Instrumental test.