Kérastase Première – Sérum Filler Fondamental Hair Serum – 90ml


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Kérastase Première Sérum Filler Fondamental represents a feather-light leave-in remedy crafted to internally mend all varieties of damaged hair, leaving it with a radiant sheen and supple texture.

Due to heightened porosity, processed hair absorbs triple the amount of calcium from water compared to untreated strands, resulting in a detrimental calcium overload that manifests both internally and externally within the hair fibre. Kérastase Sérum Filler Fondamental adopts a dual-pronged approach: its airy, balm-like consistency adeptly seals the cuticles, safeguarding the hair’s surface, while simultaneously infusing the fibre with fortifying agents, enhancing hair resilience.

  • 3X smoother hair*
  • 2X softer hair*
  • 99% stronger hair*
  • 72H anti-frizz*
  • Hair protected from heat up to 450 °F*
* Instrumental test