Kerastase Premiere 1 Decalcifying System Reparative Pre-Shampoo Treatment - 33.8 oz - Decalcify. Repair. Rediscover Your Hair's Première Strength

Unleash your hair's original strength with the Kérastase Première Concentré Décalcifiant Ultra-Réparateur Treatment, the game-changing pre-shampoo that radically reverses the persistent damage caused by hard water’s unseen enemy: calcium. Hard water's calcium buildup infiltrates the hair's structure, leaving strands stiff, dull, and prone to breakage—especially if your hair is already color-treated or bleached, making it 3 times more porous. This revolutionary dual-action, transparent gel treatment works its magic before you even shampoo, penetrating the fiber to both decalcify the hair and repair it from the inside out.

This potent formula boasts an unprecedented 8% concentration of pure acids, making it your hair's ultimate repair hero. It's enriched with Citric Acid, a powerhouse that works from the surface to the core, neutralizing the dullness and stiffness caused by excess calcium. Once the damaging minerals are targeted, the star amino acid, Glycine, enters the inner hair layers to reconnect broken keratin links, a vital step that reinforces the hair's internal architecture. The result is nothing short of miraculous, as the treatment dramatically repairs persistent damage to leave your hair stronger, smoother, and healthier-looking—as if it were renewed to its première state. The experience is sensorial and chic, featuring the addictive "Portofino Summer" scent, a luminous blend of mandarin, delicate orange flower, and subtle woody facets.

Your hair's future is looking bright, glossy, and full of life—expect a transformation that delivers up to 99% recreation of your hair's original strength and 93% less breakage. Applying this pre-shampoo is the critical first step in your Première routine: apply generously to wet lengths, massage, and let it sit for five minutes. Pro Tip: Do not rinse it out! Layer the Première Bain Décalcifiant Réparateur Shampoo directly on top to maximize the dual decalcifying and repairing efficacy, before rinsing and following with your favorite Première mask or conditioner. This large, professional 33.8 oz (1000ml) size ensures your ritual of radical repair will last, providing a continuous defense against hard water and restoring your hair's flow and movement.