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Kérastase Première Bain Décalcifiant Rénovateur is a sulfate-free repairing shampoo for damaged hair. It targets two problems at once: calcium buildup from hard water and protein loss from bleaching, coloring and heat. The formula pairs a decalcifying agent with peptides and glycine to help rebuild the hair fiber, and it lathers into a rich foam despite having no sulfates. It suits people with over-processed or hard-water-dulled hair who want a salon-style cleanse; it is a premium step in a routine, not a budget everyday wash.
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Lowest price we've seen: $33.00 on Nov 10 at StrawberryNET. Tracked across 3 stores since Nov 10.
Owners with damaged, color-treated hair generally praise the softening and detangling effect and the rich lather for a sulfate-free shampoo. Some find it too heavy for fine hair or say the scent is strong, and a few see little difference without the matching conditioner.