The Kérastase Première Refillable Shampoo is a decalcifying, repairing shampoo for all types of over-processed or damaged hair. The professional-level shampoo gently cleanses the scalp and hair while removing excess calcium*. Arriving with a 500ml refill pouch, the duo allows you to replenish the reusable shampoo bottle. Working against calcium found in your shower water, the duel action formula features a creamy foam texture to help remove build-up* that can cause further breakage. Layer the 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. Proven Results: Removes calcium build up* Restores up to 99% of hair's original strength** *Instrumental test, when using full Première routine​. **Instrumental test on bleached hair after continued use of the full Première routine vs. non-bleached hair. Set Contents: Première Shampoo Decalcifying & Repairing Refillable Bottle 500ml Première Shampoo Decalcifying & Repairing Refill Pouch 500ml