When hair is damaged, its molecular structure, composed of peptides, is compromised. But most peptides are too big to be reinjected into the fibre, making damage almost irreversible. Scientific discovery - Absolut Repair Molecular. Help repair damage & restore original hair strength. Up to 82% more strength*. Restore hair's original elasticity & movement**. For the first time, L'Oréal's Advanced Research team successfully managed to decompose peptides, to inject their components separately into the fibre***. Once inside, they reform & rebuild the molecular structure of the hair****. This patented shampoo, formulated with Peptides bonder + 5 Amino acid, repairs hair macro-molecular structure*. Hair is stronger and nourished, with improved elasticity, movement*****, and +86% smoothness******. Sulfate-free, the formula's luxurious texture turns into a rich foam, cleanses, detangles hair and delivers a high level of care. For all damaged hair textures, colour-treated, lightened & natural hair. This range has been co-developed with 3 repair experts: Adina Pignatare @adina_pignatare from the US Mike Julliard @loungecut from France Barbara Rabelo @barbararabelo_ from Brazil Refill your Serie Expert Shampoo bottle with new refill pouches.*Brushing test vs sensitised hair.**Instrumental test after 5 applications of shampoo + rinse off serum.***Amino acids & peptides bonder.****Instrumental test after 15 applications of shampoo + rinse-off serum + leave-in mask.*****Consumer test after application of shampoo + rinse-off serum + leave-in mask.