Restores hair’s original strength* while providing up to 73% shinier hair** by freeing hair from calcium build-up that leads to breakage. Kérastase Première Decalcifying Repairing Shampoo is a decalcifying, repairing shampoo for all types of over-processed or damaged hair. This professional-level shampoo gently cleanses the scalp and hair while removing excess calcium***, which further weakens treated hair. Use the full routine to help repair hair from the inside out, reduce breakage and restore a healthy feel to the hair. 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 helps restore keratin links within the hair shaft, repairing hair at the core. Your hair feels smooth, manageable, and bouncy. Kérastase recommend layering the Première Decalcifying Repairing Shampoo on top of Kérastase Decalcifying Repairing Pre-Shamp