The Anua Birch Moisture Mask is a moisturising sheet mask formulated with Birch Sap from Gangwon-do in Korea that delivers intense hydration to the skin and helps maintain skin's vitality with rich Vitamins A, C and minerals. Features Aquaxyl™, a patented ingredient to prevent skin moisture loss and 10 types of Hyaluronic Acids to keep the skin hydrated. The water-gel mask sheet attaches to the skin firmly and evenly to help deliver nutrients and moisture thoroughly to the skin.