Kerastase Premiere Serum Filler Fondamental - Leave-in repair serum with anti-frizz action for all damaged hair types.

✔ Repels moisture

✔ Deeply nourishes

✔ Eliminates frizz

✔ Makes hair softer and smoother

• 2x softer hair

• +99% strength

• 72h anti-frizz

• Thermal protection 230°C

The Sérum Filler Fundamental is aLeave-in repair serum with anti-frizz action for all damaged hair.

The calcium in hard water can damage already weakened/sensitized hair. When hair is damaged, it becomes porous and absorbs daily aggressors like calcium, entering a cycle of persistent damage.

With its light and creamy texture it envelops the hair in softness, making it softer and more vital.

Its double action seals the cuticles,It creates a smooth and protective surface, while simultaneously plumping the hair fiber, restoring its strength and fluidity. Hair is protected from excess calcium, humidity, and heat up to 230°C*.Frizz is controlled for 72 hours* and hair appears smoother, more elastic and easier to detangle.

Perfect your hair routine by combining the Sérum Filler Fundamental with the rest of the Première line. Start your routine by layering the Concentré Décalcifiant Ultra-Réparateur and the Bain Décalcifiant Réparateur. Then apply the Masque Filler Réparateur or the Fondant Fluidité Réparateur on lengths and ends. Finish with the Fundamental Filler Sérum to regain sublime, healthy hair.

*Instrumental test, after an application of Sérum Filler Fondamental