KÉRASTASE Première Repair Pre-Shampoo Treatment for Damaged Hair — Citric Acid Decalcifying & Glycine Bond-Rebuilding, 150ml

KÉRASTASE Première Repair Pre-Shampoo is a dual-action treatment that removes calcium buildup and reconnects weakened keratin links to visibly strengthen hair and reduce breakage after a single use.

Designed as the first step in the KÉRASTASE Première repair routine, this pre-shampoo formula uses citric acid to decalcify the hair fiber and glycine to help rebuild internal keratin connections. It’s applied to damp hair before shampooing, creating a clean, receptive surface so subsequent products in the system can perform optimally. The result is softer, shinier strands with reduced stiffness and fewer snap-offs.

How does the pre-shampoo remove calcium buildup?

The treatment contains citric acid, a chelating agent that helps dissolve mineral deposits deposited on the hair surface. Clearing that buildup restores flexibility and allows moisture and active ingredients to penetrate more effectively.

• Citric acid targets and dissolves surface calcium deposits.
• Opens the cuticle slightly for better product absorption.
• Prepares hair for deeper bond repair during shampooing and conditioning.

In what way does it reconnect broken keratin links?

Glycine in the formula supports the reformation of weakened connections between keratin chains, helping fibers withstand stress. This bond-repair action reduces snap and improves overall strength, especially when used with the rest of the Première system.

• Glycine aids internal fiber cohesion for increased tensile strength.
• Works synergistically with subsequent shampoo and mask steps.
• Helps reverse stiffness so hair feels more elastic and manageable.

What results can I expect after using it once?

After a single application, you should notice reduced breakage and enhanced shine because deposits are removed and bonds begin to reconnect. KÉRASTASE reports significant improvements in strength, shine, and breakage metrics when used as directed and alongside the full routine.

• Softer, less rigid hair texture immediately after rinsing the system.
• Visible increase in surface shine compared with unwashed hair.
• Lower incidence of breakage versus non-conditioning shampoo users.

How do I use this treatment for best effect?

Apply generously to damp hair before shampooing, massage through the lengths and leave on for five minutes. Do not rinse this step out; follow directly with the Première Repairing Shampoo, then massage, emulsify and rinse to complete the cycle.

• Work onto damp, towel-blotted hair for even coverage.
• Leave on five minutes to let actives work on buildup and bonds.
• Layer the repairing shampoo on top—massage and rinse to finish.

Who is this for: This pre-shampoo is formulated for hair showing persistent damage, stiffness, dullness or frequent breakage—especially hair exposed to hard water or buildup. It’s suitable for anyone seeking to restore fiber strength and shine as part of a targeted repair regimen; for best results, use it with the full KÉRASTASE Première system.

Ingredients

AQUA / WATER / EAU • GLYCERIN • PROPYLENE GLYCOL • GLYCINE • CITRIC ACID • PEG-40 HYDROGENATED CASTOR OIL • SODIUM HYDROXIDE • PARFUM / FRAGRANCE • CETRIMONIUM CHLORIDE • POLYSORBATE 20 • POLYSORBATE 80 • PHENOXYETHANOL • HYDROLYZED VEGETABLE PROTEIN PG-PROPYL SILANETRIOL • HYDROXYPROPYL GUAR • HYDROXYPROPYL GUAR HYDROXYPROPYLTRIMONIUM CHLORIDE • QUATERNIUM-80 • LIMONENE • LINALOOL • SODIUM BENZOATE • CITRAL • POTASSIUM SORBATE