Leave-in repairing, anti-breakage, and filling hair serum. This anti-frizz serum works by sealing and filling strands and protecting them from the heat of styling tools, leaving hair shiny and strong. Kérastase Première Sérum Filler Fondamental is a lightweight leave-in treatment for the internal repair of all types of damaged hair, leaving it shiny and supple. Due to its greater porosity, sensitized hair absorbs more calcium from water than untreated hair, causing a harmful excess of calcium visible inside and outside the hair fiber. Kérastase Sérum Filler Fondamental has a dual action: its lightweight texture seals the cuticle to protect the hair's surface, while filling the fiber and strengthening it. Hair is protected from the damage caused by hard water, humidity, and heat up to 230°C. Frizz is eliminated, leaving hair smooth and supple, easy to manage. For extra care for your bleached or damaged hair, use the entire Première range. Experience the powerful effectiveness of the layering technique: Start with the Kérastase Concentré Décalcifant Ultra-Réparateur pre-shampoo treatment, then, without rinsing the Concentré, use the Kérastase Bain Décalcifant Réparateur shampoo. Follow with the conditioner or mask before applying the Kérastase Sérum Filler Fondamental as the final repair step. 72H Anti-frizz**Instrumental test
SKU: 1KE035PR40001
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