Our soothing and moisturizing Sleeping mask contains hydroxyethylcellulose, niacinamide, Vitamin C (ascorbic acid). It can deeply nourish, release repair power at night, and leave skin hydrated and smooth. Its use method is very simple: after cleansing before going to bed, take appropriate amount of this product evenly spread on the face. When you wake up, wash with clean water. And can help improve the dull skin tone, show the skin luster.