Sub-acid mask that absorbs triple Hyaluronic Acid as lightly and comfortably as air into the skin, allowing the skin moisture barrier to stay watery. Three Layered Moisturizing - Triple Hyaluronic Acid composed of small, medium, and large molecules is absorbed deep into the skin moisture barrier neatly, providing compact and full moisturizing effect. Sub-acid Mask - The fruit vinegar ingredient makes the skin to healthiest and slightly acidic state by controlling the pH balance disturbed by the external environment. , , Comfortable Air Mesh Sheet - With highly permeable mesh material, the sheet adheres lightly to the skin for it to breathe, and delivers active ingredients gently.