Kerastase Nutritive Bain Magistral Shampoo for Severely Dried Out Hair is a nourishing daily use, gentle cleansing shampoo. Created for those with dry and severely dry hair, it is the perfect formula to protect and replenish your hairs natural moisture and shine. Infused with Irisom to help restore your hairs inner strength and protect your hair from oxidation resulting from hard water and environmental aggressors. Best when used along with Kerastase Masque Magistral once a week and Fondant Magistral Conditioner.