Kerastase Premiere Serum Filler Fondamental

This lightweight, balmy serum not only nourishes and fills the hair fibre but also seals cuticles to defend against the damaging effects of calcium in hard water, humidity, and heat up to 230°C. It dramatically reduces frizz, leaving hair three times smoother and twice as soft, while reinforcing hair strength for a resilient, glossy finish. Ideal for use before heat styling, it ensures your hair remains protected, manageable, and impeccably styled.