Krastase Premire Bain Dcalcifiant Rparateur is a decalcifying, repairing shampoo for all types of over-processed or damaged hair. This sulfate-free** professional-level shampoo gently cleanses the scalp and hair while removing calcium, which further weakens treated hair. Hair is repaired from the inside out, breakage reduced, and its health restored.A white creamy shampoo that transforms into a luxurious foam, its dual action fights the calcium overdose from hard water that attacks your already damaged or bleached hair, leaving it dull, lifeless, and limp. It also restores keratin links within the hair shaft, repairing hair at the core. Your hair feels smooth and manageable, shiny and bouncy.