Our caffeine firming serum contains glycerin, coffee extract. It improves skin elasticity, helps reduce fine lines, and gives skin a firm glow. Deeply replenish skin moisture and keep skin soft and moisturized after use. The way to use it is simple: after washing your face, wipe your skin clean. Using the provided dropper, apply one third of the product to your face and gently massage in a circular motion with your hands to absorb. It can also improve skin elasticity, tighten skin, reduce fine lines and wrinkles, and keep skin young and energetic. Long-lasting moisturizing, penetrating deep into the skin, improving skin clarity and moisture.