This serum is rich in two core ingredients: 24K gold foil and collagen. 24K gold foil can enhance skin vitality, promote nutrient absorption, and enhance skin radiance. Collagen can increase skin elasticity and reduce fine lines. It effectively improves skin sagging, dullness and other problems, making the skin firm, delicate and shiny. Continuous use can replenish moisture and nutrients to the skin and delay skin aging.