Our collagen anti-aging serum contains hyaluronic acid, niacinamide and vitamin C. It can whiten, reduce wrinkles, repair and moisturize the skin, and keep the skin healthy. Its use method is very simple: after cleansing, apply appropriate amount of this product evenly on the face, gently massage for 3-5 minutes until the skin is completely absorbed. And it can fight wrinkles and repair dark spots.