Give hair an instant boost of hydration with the Kérastase Specifique Masque Réhydratant Hair Mask. The lightweight gel formula is formulated to quench the thirst of dry, damaged hair.Infused with amino acids and ceramides, the mask offers hair intense nourishment and moisturisation, promoting a smooth and silky appearance. Add this ten-minute leave-in treatment to your haircare ritual to help boost softness and shine.