Kérastase Nutritive Magistral Masque, a deep conditioning treatment masque, excellent for very dry, sensitised hair. The heat-reactive formula helps to revitalise hair that suffers from dryness. After use hair is left looking soft, shiny and supple. Why use Masque Nutri-Thermique? Studies show that 18.5% of European women have dry hair. Devoted to all women with very dry hair, Masque Nutri-Thermique, enhanced with Systeme Thermo-Intense, provides intense nourishing power. The formula is activated by heat which amplifies the nourishing power, locking it deep inside the hair to help create long-lasting results.