Davines OI Roucou Oil, 1000 ml, Hair Conditioners for Women, The Davines OI Roucou Oil conditioner makes your hair easy to detangle and nourishes it, something all healthy, beautiful hair needs. Characteristics: makes untangling and styling easier protects hair against damage provides the necessary hydration ensures brilliant shine How to use: Apply after first washing with shampoo. Leave to act for a while, then rinse thoroughly.