Whether you do it at night or morning, noon and night, cleansing your skin means drying it out. Period. Even when you get out of the shower, as the water evaporates from your body, it's taking moisture from your cells with it. Wash your face once in the morning with a gentle soap, and then cleanse it again at night before you apply a moisturizer. The most important thing for cleansing sensitive skin is to strike a balance between keeping your skin free of dirt and grime and giving your body a fighting chance to create and retain as strong a barrier as possible between your dermis and the outside world.