With a whopping 50% of hyaluronic acid, this Isntree Hyaluronic Acid Toner replenishes moisture to keep the skin firm and supple -- characteristics that are essential to a younger-looking skin! Together with trehalose, birch sap, and collagen, Isntree's bestseller revitalizes the skin so that it feels softer, smoother, and instantly hydrated. Fast-absorbing and beneficial for all skin types, this is one toner you don't want to miss out on. Isntree Hyaluronic Acid Toner was rated as Korea's #1 toner in 2016.