Kérastase Première Sérum Filler Fondamental is a lightweight leave-in treatment for repairing all types of damaged hair. This anti-breakage serum, which offers 72 hours of frizz protection*, seals and fills hair strands and protects them from the heat of styling tools, leaving hair shiny and strong.
The formula contains:
Peptide: a chain of amino acids that refills the hair surface.
Glycine: once calcium has been removed from the hair using the combination of Première Concentré Décalcifiant Ultra-Réparateur & Première Bain Décalcifiant Réparateur, this amino acid penetrates the inner layer of the hair to repair deeply.
This restores broken bonds between keratin chains, drastically reducing breakage.
Benefits: Due to increased porosity, treated hair absorbs 3 times more calcium from water than untreated hair, leading to a harmful calcium overdose that is visible inside and outside the hair fiber. Kérastase Sérum Filler Fondamental has a dual action: the light, balm-like texture seals the hair cuticles to protect the hair surface, while the fiber is plumped up and damaged hair is strengthened. Your hair is protected against calcium damage from hard water, as well as humidity and heat up to 230°C. Frizz is eliminated and the hair is smooth, supple, and easy to style. For even more care for your bleached or damaged hair, combine it with the rest of the Première range.
Try the maximum power of the layering technique: Start with the pre-shampoo treatment, Kérastase Concentré Décalcifiant Ultra-Réparateur, and then use the shampoo, Kérastase Bain Décalcifiant Réparateur, without rinsing out the Concentré. Next, apply the conditioner or mask before applying Kérastase Sérum Filler Fondamental as the final restorative step.
*Instrumental test
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