Ideal for dry hair in need of deeper conditioning, Masque Fondamental Riche is a rich nourishing hair mask that provides 96 hours of lasting smoothness & frizz control. Applied on washed hair, this masque is enriched with nourishing agents from the Amazonian Brazil Nut Oil (high in fatty acid, selenium and vitamin E contents) whose unique properties allow hair to be quenched and deeply treated with moisture without being weighed-down.