Immerse your skin in a real "Thermal Bath". The hydrating power of Uriage Thermal Water in a unique night mask with an ultra-light gel water texture. The skin is rested, like “8 hours of sleep”: smoothed skin texture, fully hydrated, supple and soft skin, for an ultra-fresh complexion. How to use - Apply a thin layer every evening to the entire cleansed face. Leave on overnight. Rinse off when you wake up with Thermal Micellar Water or spray your face with Uriage Thermal Water to prolong your skin's hydration.