KÉRASTASE Première Bain Décalcifiant decalcifying shampoo 16.9 fl oz — removes mineral buildup, repairs & smooths damaged hair

KÉRASTASE Première Bain Décalcifiant is a restorative shampoo that removes mineral buildup while strengthening and smoothing damaged hair.

If your hair looks dull, feels heavy, or breaks more easily because of hard-water minerals and styling residue, this shampoo is formulated to decalcify the fiber and support reconstruction. Enriched with targeted acids and glycine, the formula aims to strip away excess calcium, reopen hair cuticles for thorough cleansing, and rebuild internal bonds to restore tensile strength and surface slip.

How does this shampoo remove calcium and residue?

The shampoo contains pure acids designed to gently dissolve mineral deposits that accumulate from hard water and styling products. By clearing these barriers, the active ingredients can penetrate the hair fiber more effectively, preparing hair for repair steps that follow.

• Acidic agents lift and remove calcium and mineral film.
• Deep-cleansing action reaches the hair cortex, not just the surface.
• Prepares fiber for rebuilding treatments and conditioners.

What repairing benefits should I expect after use?

Consistent use supports rebuilding the internal structure of damaged hair, helping recover much of its original strength while improving manageability and shine. The formula works to smooth the fiber so hair feels softer and appears glossier.

• Helps restore internal bonds that contribute to hair strength.
• Leaves hair noticeably smoother and easier to detangle.
• Visible boost in surface shine and overall condition.

How do I use KÉRASTASE Première Bain Décalcifiant for best results?

Apply to thoroughly wet hair, massaging the scalp and lengths to activate the decalcifying action, then rinse. A second application is recommended to deepen the cleansing and repair effects before continuing with your usual conditioner or treatment.

• Wet hair fully before applying shampoo.
• Massage scalp and through mid-lengths to ends, then rinse.
• Repeat once for optimal decalcifying and reconstructive benefits.

Can this shampoo be used with other KÉRASTASE treatments?

Yes — after decalcifying and strengthening the fiber, follow with a KÉRASTASE conditioner or mask tailored to your hair concern for complementary repair and protection. Clearing mineral buildup enhances the performance of subsequent products.

• Use before intensive masks to improve absorption.
• Pair with a KÉRASTASE reconstructive treatment for severe damage.
• Finish with leave-in products for lasting smoothness and shine.

Who is this for: KÉRASTASE Première Bain Décalcifiant suits anyone with damaged, brittle, or lackluster hair affected by hard water, product buildup, or frequent styling. It’s designed for people seeking a professional-grade cleansing step that both purifies the fiber and supports structural repair, ideal as part of a multi-step routine for restoring strength, slip, and shine.