Kérastase Première Duo Shampoo Routine for Damaged Hair Repair & Decalcifying Care

The Kérastase Première Duo Shampoo Routine is a two-step repairing system designed to remove calcium build-up from hard water while restoring strength, flexibility and shine to damaged hair.

This advanced routine combines the Première Pre-Shampoo Treatment with the Bain Décalcifiant Réparateur Shampoo to target mineral overload inside the fibre. Calcium deposits weaken hair structure over time, leaving hair stiff, dull and prone to breakage. This routine works from within the hair to restore softness and resilience.

Used together, these formulas help repair persistent damage from colouring, bleaching, heat styling and environmental exposure.

Set Includes

• Kérastase Première Decalcifying Repairing Pre-Shampoo Treatment 250ml
• Kérastase Première Bain Décalcifiant Réparateur Shampoo 250ml

Key Benefits

• Removes excess calcium caused by hard water
• Helps repair internal hair fibre structure
• Reduces stiffness and breakage
• Restores softness and shine
• Improves hair strength and flexibility
• Ideal for all damaged hair types

How to Use

Apply the Pre-Shampoo Treatment to damp lengths before shampooing.
Leave for 5 minutes. Do not rinse.

Layer Bain Décalcifiant Réparateur Shampoo directly on top.
Massage gently and rinse thoroughly.

Follow with Première Conditioner or Mask for best results.

Laura loves this routine because it transforms hard-water damaged hair quickly and gives visible softness after the very first wash