REBUILD: An intensive rinse off treatment and the first step of the revolutionary new Bond Repair hair care routine to be used before shampooing. This pre-shampoo oversaturates hair with Citric Acid to rebuild inner broken hair bonds and strengthen the hair from the inside out. Hair is made up of millions of bonds that give it structure and strength. When hair bonds break through brushing, bleaching, heating, and styling, hair becomes weak and damaged. For the first time, our formula powered by Citric Acid Complex targets damaged hair. Hair is restored to its original strength¹. Up to 98% stronger hair, 90% more shine & 98% less breakage². Suitable for all types of damaged hair. ¹ instrumental test after 5 applications of Pre-Shampoo Treatment + Shampoo + Conditioner. ² instrumental test on Pre-Shampoo Treatment + Shampoo + Conditioner.