The Fundamental Repair Serum from the Première de Kérastase range is a multi-action thermoprotective treatment for all types of damaged hair. It works on the surface of the fiber to smooth, protect, soften and strengthen, while leaving hair visibly shinier and more disciplined.

Thanks to its formula enriched with peptide and glycine, this serum repairs and strengthens the hair fiber, while improving its fluidity and suppleness. It forms a heat shield up to 230°C, to protect hair from heating devices, while fighting against humidity and frizz.

Its rich yet light white balm texture is ideal for medium to thick hair.

Benefits:

✔️ Intensely repairs the fiber on the surface
✔️ Protects from heat up to 230°C
✔️ Reduces frizz and humidity
✔️ Provides fluidity, shine and softness
✔️ Improves movement and lightness
✔️ Formulated without sulfate and parabens
✔️ White balm texture, ideal for thick hair