A hydrating, shine-enhancing duo powered by science-backed formulas, Olaplex introduce the Anti Damage Duo. Starring the No.3 pre-shampoo treatment and No.9 hair serum, the duo will leave hair visibly smooth, strong and lustrous. Set Contents: No.3 Hair Perfector 100ml A pre-shampoo treatment designed to hydrate and prep hair before shampooing. With a pH balance of 3.5-5, the treatment helps to visibly smooth and enhance the shine of dry, lacklustre hair. No.9 Bond Protector Nourishing Hair Serum 90ml A leave-in hair serum formulated for dry hair types to help hydrate, boost shine and visibly smooth. Infused with the brand’s Bond Building Technology™ and red algae extract, the serum nourishes and moisturises, while providing heat protection up to 232°C.