Synopsis The peptide-based molecular structure of hair is weakened by damage. Hair snaps, gets too pliable, and becomes immobile. However, the majority of peptides are too large to be reinjected into the fiber, rendering the damage nearly irreparable. L'Oréal Advanced Research successfully broke down peptides and injected each of their constituent parts into the fiber2 for the first time. Once inside, they reform & rebuild the molecular structure of the hair³. For color-treated, lightened, and natural hair, as well as all damaged hair textures. technology covered by patents This unique shampoo repairs the macro-molecular structure of hair by combining peptide bonder and five amino acids. The result is stronger, more nourished hair that has better elasticity, movement, and + 86% smoothness. Usage instructions Apply to damp hair. Separate the hair into two halves. Apply two to three pumps of the serum to the