Our Rapid Firming Serum contains Glycerin, Niacinamide, Kojic Acid. It can help smooth out fine lines and eliminate dark circles, restore elasticity and shine to the skin under the eyes, help brighten the complexion and make your eyes glow brightly. The way to use it is simple: dry your face, apply an appropriate amount of eye cream under your eyes, massage gently, and wait for 2 minutes until the eye cream is absorbed. It can effectively smooth fine lines, eliminate dark circles under the eyes, and make the skin around the eyes more delicate and shiny.