Sérum Filler Fondamental is a lightweight leave-in treatment for the inner repair of all types of damaged hair, leaving it glossy and supple.

Because of its increased porousness, processed hair absorbs 3 times more calcium from water than untreated hair, leading to damaging calcium deposits which is visible inside and outside the hair fiber. Sérum Filler Fondamental has a dual action: its light, balmy texture seals the cuticles to shield hair’s surface, while filling the fiber and reinforcing hair strength. Your hair is protected from calcium damage absorbed from water, as well as from humidity, and heat up to 230°C. Frizz is eliminated, and hair is left smooth and supple, easy to style.

SÉRUM FILLER FONDAMENTAL BENEFITS:
49% softer hair*
3x smoother hair*
Protects from damage and heat up to 230°C*
99% stronger hair*
72H anti-frizz*

*Instrumental test after 1 application of the SÉRUM FILLER FONDAMENTAL

WHO IS IT FOR?
For all types of damaged hair.

How To Use Kérastase Première Sérum Filler Fondamental Repairing Anti-Frizz Serum 90ml:

1. Start with clean, towel-dried hair.

2. Take a small amount of the serum and rub it between your palms to warm it up.

3. Apply the serum evenly throughout your hair, focusing on the mid-lengths and ends.

4. Comb through your hair to distribute the product evenly.

5. Style your hair as desired. The serum can be used before blow-drying or as a finishing touch on dry hair.