Our Vitamin C Serum contains Glycerin, Ascorbic Acid, Hyaluronic Acid. It can effectively reduce fine lines and wrinkles, improve skin elasticity, and make skin firmer and more youthful. Its application method is very simple: use a dropper to take an appropriate amount of essence evenly drop on the face skin, gently massage until completely absorbed. It can reduce fine lines and wrinkles, improve dull skin, reduce dark spots, and make skin pale and clear.