The Kerastase Bain Force Architecte Shampoo is a repairing reconstructing shampoo for damaged hair. It is a daily reconstructing shampoo for brittle, damaged hair at erosion levels 1-2. Each fiber is reconstructed, revitalized, shiny, and smooth, making the hair soft, firm to the touch and protected. It also rebuilds and strengthens the hair fiber from roots to ends and helps prevent breakage and split ends