L’Occitane cosmetics. IMMORTELLE Mousse Nettoyante Précieuse. Cleansing foam gently that removes makeup while removing impurities leaving the skin perfectly cleansed thanks to its combination of citrus peel extract and the Immortelle flower. Apply a small amount of product on moistened hands and massage over face and neck with soft circular movements, then rinse thoroughly. You can use it both morning and night but avoid the eye contact.