KÉRASTASE Première Sulfate-Free Repair Shampoo 8.5 fl oz — Strengthens, Decalcifies

KÉRASTASE Première Sulfate-Free Hair Repair Shampoo is a gentle, repair-focused cleansing formula that removes calcium buildup and helps reconnect keratin links to strengthen and smooth damaged hair.

This sulfate-free shampoo from KÉRASTASE’s Première collection combines citric acid to decalcify hair with glycine to help reconnect broken keratin links, targeting visible and structural signs of damage without harsh detergents. Designed for use as part of a repair routine, it aims to reduce breakage, increase smoothness and boost shine while preparing hair to receive conditioners and masks more effectively.

How does this shampoo remove buildup and why does that matter?

The formula uses citric acid to dissolve calcium and mineral deposits that accumulate from hard water and product residue. Clearing these deposits restores hair porosity, so treatments and conditioners penetrate evenly and styling performs better.

• Citric acid targets and reduces mineral buildup.
• Sulfate-free surfactants for gentler daily or frequent use.
• Prepares hair for deeper repair steps like conditioners and masks.

Will it actually reduce breakage and improve strength?

KÉRASTASE combines a decalcifying action with glycine, an amino acid that supports reconnecting broken links between keratin chains. In lab and system tests cited by the brand, continuous use within the full Première regimen restored up to 99% of original hair strength and showed substantial reductions in breakage and improved smoothness.

• Glycine helps rejoin keratin links to reduce breakage.
• Reported results: up to 99% restored strength with the full system.
• Compatible with conditioners and masks for cumulative benefits.

How should I use this shampoo for the best results?

Apply to wet hair, ideally after using the Première Pre-Shampoo Treatment for layered repair. Massage to emulsify and lift buildup, then rinse completely and follow with the Première Repairing Conditioner or Repairing Mask to lock in strength and smoothness.

• Use on wet hair; massage to activate the formula.
• Pair with Première Pre-Shampoo Treatment, then conditioner or mask.
• Suitable for regular use as part of a repair routine.

What visible improvements can I expect and how quickly?

Visible benefits depend on hair condition and consistency of use, but KÉRASTASE reports measurable improvements: 73% more shine and twice the smoothness versus unwashed or untreated hair when used in the recommended system. Many users notice reduced tangling, easier combing, and a smoother finish after conditioning.

• Up to 73% more shine reported with the system.
• Smoother hair and easier detangling after treatment.
• Progression of results improves with continued use in the full routine.

Who is this for? Première Sulfate-Free Hair Repair Shampoo is formulated for anyone with damaged, dry, chemically treated, or mineral-laden hair who wants a gentle clarifying wash that also supports structural repair. It’s a good fit if you experience breakage, dullness, or product and hard-water buildup and want a sulfate-free option that preps hair for conditioners and masks in a professional-grade repair system.

Ingredients

Water (Aqua/Eau), Sodium Cocoyl Isethionate, Cocamidopropyl Betaine, Sodium Lauroyl Sarcosinate, Citric Acid, Glycerin, Sodium Benzoate, Polyquaternium-10, Hydroxypropyl Guar Hydroxypropyltrimonium Chloride, Fragrance (Parfum), Salicylic Acid, and Hydrolyzed Wheat Protein