KÉRASTASE Première Pre‑Shampoo Treatment for Damaged Hair — Citric Acid Decalcifier, Bond‑Reconnecting Glycine (150 ml)

KÉRASTASE Première Pre-Shampoo Treatment is a citric-acid power pre-wash that removes calcium buildup and reconnects weakened keratin links to improve strength, shine, and reduce breakage after a single use.

This concentrated pre-shampoo is designed for hair showing persistent damage: stiffness, dullness, and breakage caused in part by mineral buildup and disrupted keratin bonds. The formula pairs citric acid to decalcify the hair fiber with glycine to help rejoin broken links between keratin chains, delivering visibly smoother, stronger hair when used before shampooing and as part of the full Première system.

How does this pre-shampoo reduce breakage?

Instead of acting like a conventional cleanser, this treatment targets two underlying causes of fragility: hard mineral deposits and ruptured keratin connections. By removing calcium build-up and supporting reconnection of keratin links, the treatment lowers mechanical weakness and helps hair resist breakage during styling and washing.

• Citric acid removes mineral deposits that stiffen and weaken the fiber.
• Glycine supports reconnection of broken keratin links within the hair structure.
• Used before shampooing to prepare and protect the hair fiber for the rest of the routine.
• Clinical-style metrics: improved strength, shine, and reduced breakage when used in the system.

What is the proper way to use the Premiere Pre-Shampoo?

Apply the treatment generously to damp hair prior to shampooing — don’t rinse it out. Leave on for five minutes to let the active ingredients work, then apply Première Repairing Shampoo directly over it, emulsify, and rinse to complete the ritual. This sequence optimizes removal of buildup and maximizes bond reconnection.

• Work onto damp hair, root to tip, for even coverage.
• Allow a five-minute dwell time for ingredient activity.
• Layer with Première Repairing Shampoo without rinsing first for best results.
• Massage, emulsify, then rinse thoroughly.

Which visible improvements can I expect after using it?

After a single application, hair typically feels softer and more manageable; with continued use as part of the full Première range, measurable improvements in strength and shine are reported. The formula focuses on restoring the hair’s internal integrity rather than only masking surface issues, so enhancements build with regular use.

• Immediate reduction in stiffness and increased suppleness.
• Reported boost in shine versus unwashed hair when used in the system.
• Progressive improvement in breakage rates when combined with the full routine.
• Reinforced bonds reduce long-term fiber wear from combing and styling.

Can this treatment be used on colored or chemically treated hair?

The treatment targets mineral buildup and keratin link integrity, so it is suitable for many types of damaged hair, including color-treated and chemically processed hair. As always, if you have specific concerns about a recent chemical service, consult your stylist to confirm timing and compatibility with other salon treatments.

• Formulated to address structural damage common after chemical services.
• Safe to use on color-treated hair when following product instructions.
• For best outcome, integrate into a recommended professional routine.

Who is this for: KÉRASTASE Première Pre-Shampoo Treatment is intended for people whose hair shows persistent signs of structural damage—stiffness, dullness, and frequent breakage—or for anyone wanting to remove mineral buildup that undermines hair health. It suits those who prefer a targeted pre-wash step to strengthen the hair fiber before shampooing and styling, and works best when included in the full Première repair system recommended by KÉRASTASE.

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