A repairing shampoo that removes limescale build-up from damaged hair
Kérastase Première Bain Décalcifiant Réparateur is a shampoo from Kérastase's Première range, made for damaged hair that has been dulled by hard water. It clears calcium and mineral deposits from the fibre while starting the repair process, so hair feels lighter and softer and takes the following care better.
The texture
A clarifying-style gel shampoo that foams well. Because it removes mineral build-up, hair often feels noticeably lighter and cleaner after the first wash, which helps masks and serums work.
Who it suits
- Hair damaged by colour, heat or brushing
- People who live in hard-water areas
- Hair that feels heavy, dull or hard to style
- Anyone starting the Première repair routine
Worth knowing before you buy: Because it clears build-up, it works best as the first step of a routine and is followed by a mask. It is not meant to replace a gentle daily shampoo if your scalp is dry.
Complete the routine

Première Masque Filler
A mask to rebuild damaged hair.
Shop →
Première Huile Gloss
A finishing oil for shine.
Shop →Characteristics
- Format: Shampoo, 250ml
- Hair type: Damaged hair
- Concerns: Limescale build-up, dullness, damage
- When to use: Every wash or once or twice a week, as needed
- Main benefits: Removes build-up, repair, lightness
How to use
Massage into wet hair, rinse, and follow with the Première mask or conditioner.
Manufacturer information
Brand: Kérastase (L'Oréal Professionnel Produits)
Address: 14 rue Royale, 75008 Paris, France
EAN: 3474637195809
