Featuring 600 milligrams of hyaluronic acid as the main ingredient, Isntree Hyaluronic Acid Deep Moisture Water Mask aims to keep skin hydrated, moisturized, and vibrant. It contains 3 types of hyaluronic acids including sodium hyaluronate, hydrolyzed hyaluronic acid, and sodium acetylated hyaluronate to supply and hold moisture to every layer of the skin.