Kérastase Bain Décalcifiant Réparateur Damaged hair

The Repairing Descalifying Bath from the range Premiere is a detangling and reparative shampoo for all types of damaged hair.

The calcium in hard water can cause further damage to hair that is already damaged or sensitized. Because it is more porous, damaged hair absorbs three times as much calcium as healthy hair, leading to a cycle of ongoing damage.

This professional sulfate-free shampoo gently cleanses the scalp and hair while removing excess calcium*, which further weakens damaged or sensitized hair. Hair is repaired from the inside out, and 96% of hair damage is repaired after just one use**. 92% of women say their hair is permanently repaired.***

This creamy shampoo produces a rich lather and has an irresistible citrus scent. Hair is left smooth, shiny, bouncy, and easy to style.

For best results, start by applying the Ultra-Repairing Descaling Concentrate and letting it sit for 5 minutes, then layer on top—without rinsing—the Repairing Descaling Bath. Follow with the Repairing Filler Mask or the Repairing Fluid Cream for added softness and surface repair. Finish with the Fundamental Filler Serum and/or the Repairing Gloss Oil for heat protection and intense shine.

This product won the 2025 ELLE International Beauty Award.

*Instrumental test, after 6 applications of the Ultra-Repairing Decalcifying Concentrate, the Decalcifying Repair Bath, and the Fluidity Melting Cream or First Repair Filler Mask
**Instrumental test, following use of the ultra-repairing descaling concentrate, the descaling repair bath, and the softening treatment or first-step mask
***Consumer test involving 268 participants, following two weeks of use of the Ultra-Repairing Decalcifying Concentrate, the Decalcifying Repairing Bath, and the First Repairing Filler Mask

Benefit: 
Citric Acid: An active ingredient that works from the surface to the core of the hair to remove excess calcium, which causes breakage

Results: 
96% of hair damage is repaired after just one use*. Hair regains its suppleness and bounce. It is shiny and soft to the touch.
*Instrumental test, following use of the ultra-repairing decalcifying concentrate, the decalcifying repair bath, and the softening treatment or first-step mask