After 10 years of research, Kérastase presents a new generation of care, developed to descale, repair and drastically reverse hair damage. Reveals hair in its Première state: visibly healthy, strong and with more shine.
Damaged hair is porous and absorbs 3 times more calcium during washing, contributing to an excess of this mineral, which accumulates in the cuticle and hair cortex, making the hair stiff and brittle.
Kérastase Première Sérum Filler Fondamental is an anti-frizz serum that fills the hair, suitable for damaged hair. Provides stronger hair, with 2 times fewer split ends, 2 times more softness, less surface damage and thermal protection up to 230 °C.

Benefits
The Première range, through its double repairing action, breaks the cycle of persistent damage to decalcified hair, with an internal structure that is 97% more resistant, recreates 99% of the hairs original strength and penetrates the inner layer of the hair to repair its structure in depth, in order to reduce damage to the surface and interior of the hair. In addition, it offers much more luminous hair, 3 times more discipline and smoother.
With 72-hour anti-frizz action, this leave-in serum protects hair against humidity, deeply nourishes, prevents frizz and fills the surface of the fiber, resulting in soft, smooth hair.

How to apply
Apply to damp hair. Do not rinse. In case of contact with eyes, rinse immediately and thoroughly with water.
For a better result, combine with the other products in the Première range.