Our Rose Oil VC anti-aging serum contains glycerin, panthenol and PCA sodium. It stabilizes, promotes collagen regeneration and brightens and firmers the skin. Its use method is very simple: after cleansing and toning, take 3-5 drops of essence on the face, gently pat or massage with fingertips to promote absorption, until the original solution is fully absorbed by the skin. It can promote collagen synthesis, enhance skin elasticity, brighten and firm skin.