Our Vitamin C brightening serum contains collagen and arbutin. It can significantly lighten skin tone, improve dullness and restore skin shine. Its application method is very simple: thoroughly clean your skin and let it dry completely first; take an appropriate amount of this product and apply it evenly to your facial skin; gently massage until it is fully absorbed.. And it can keep the water locked and moisturized for a long time, leaving the skin hydrated, plump, soft and smooth.