why you need to double cleanse

Whether or not you wash your face day and night, you might be surprised at what's left on your skin after a single cleanse. Environmental pollutants in the air, as well as cosmetics such as sunblock and waterproof make-up, combine daily with the skin's naturally-sticky sebum (oil) secretions to form a thick, slick, waxy coating by the middle of the day. Yuck.