Kérastase Nutritive Magistral Fondant provides intense nourishment for dry and sensitised hair. Provides the hair with intense nourishment and shine leaving your looking softer and easier to untangle. Fondant Nutri-Thermique provides deep nutrition through an exclusive complex of nourishing agents which operate in the most sensitised areas of the fibre, offering intense nutrition to the hair. Heat activates the thermo-reactive formula, trapping the nourishing elements deep inside the hair fibre. The heat-activated formula creates a protective film all around the fibre to help prevent dryness.