KÉRASTASE Première Decalcifying Repairing Pre-Shampoo Treatment 250ml Restores hair's original strength* while providing up to 75% more shine** by freeing hair from calcium build-up that leads to breakage. Kérastase's first pre-shampoo hair treatment, suitable for all hair types, removes excess calcium and helps repair all types of damaged hair. This includes damage by heat tools, colour treatment, bleaching, over-processing and other types of hair damage. Calcium in water can further damage already delicate over-processed or bleached hair. Being more porous, damaged hair can absorb up to 3 times more calcium than natural hair. This hair treatment is formulated with a concentration of pure citric acid and glycine and has a dual action: it decalcifies hair from this calcium overdose, and works to repair it from the inside out, restoring hair strength, and reversing its stiff, dull appearance. Once excess calcium is removed, this product which is formulated with the amino acid Glycine, penetrates the hair's inner layer, to help deeply repair the hair. With its transparent gel texture, this pre-treatment helps repair persistent damage, working to reconnect broken keratin links and reinforce hair strength and structure. Hair is left stronger, healthier-looking, and shinier - as if renewed. Leave on Kérastase Première Decalcifying Repairing Pre-Shampoo Treatment without rinsing, and then layer with Kérastase Première Decalcifying Repairing Shampoo, then rinse out both. Finish with Kérastase Première Decalcifying Repairing Conditioner as a final step. *Instrumental test on bleached hair after continued use of the full Première routine vs. non- bleached hair. **Instrumental test. KÉRASTASE Première Decalcifying Repairing Refill Shampoo Pouch 250ml 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 and manageable, shiny and bouncy. We recommend layering Kérastase Première Decalcifying Repairing Shampoo on top of Kérastase Decalcifying Repairing Pre-Shampoo Treatment without rinsing first for maximum results. Team with other products from the Première range, like the Anti-Breakage Repairing Filler Mask. *Instrumental test, when using full Première routine. The 500ml refillable shampoo bottle is made using recycled plastic, except the pump, colourants & additives, and can be refilled with the associated shampoo pouch, made with -82% plastic packaging than packaging of two 250ml Bain.