Part of Kérastase's Première range, the Ultra-Repairing Decalcifying Concentrate is a key step in interrupting the cycle of damage to damaged hair. This ultra-targeted pre-shampoo treatment acts before the Première Decalcifying Repair Bath to eliminate excess calcium, often responsible for the weakening of the hair fiber.

Its powerful formula, concentrated with 8% pure active ingredients – 3% citric acid and 5% glycine – penetrates to the heart of the hair to rebuild internal bridges, strengthen structure and restore up to 99% of the hair's original strength*.

This treatment ideally prepares the hair to receive the repairing active ingredients of the following treatments, while providing softness, hydration and enhanced shine.

Benefits:

✔️ Detoxifies the hair fiber with calcium
✔️ Prepares for intense
✔️ repair Rebuilds 99% of the original strength*
✔️ 6x more softness and hydration*
✔️ Provides shine*
✔️ Sulfate-free, silicone-free
✔️ formula High concentration: 3% citric acid + 5% glycine