Kerastase Blond Absolu Cicaplasme Hair Serum helps soften hair. Protect and nourish blonde hair with a lightweight, leave-in serum designed to enhance softness and smoothness. This opalescent, lavender-hued formula helps maintain hydration while shielding strands from heat styling and environmental stressors. Infused with antioxidant-rich ingredients, it provides weightless moisture while helping improve the look of damaged areas. Hair appears smoother, stronger, and more radiant over time.