Vitamin C has received a lot of recent recognition by dermatologists and nutritionists alike for its ability to build collagen (the protein that makes skin strong and firm), repair sun damage and prevent against future agents of aging (such as sun, pollution, etc.) This formulation qualifies as a natural powerhouse, delivering an estimated 14% vitamin C into the skin cells. Three forms of stabilized vitamin C make this serum an exceptional formulation. The addition of three forms of Vitamin E strengthens the effectivness of Vitamin C, creating the dynamic duo of skin care. Three unique delivery systems instantly diffuse vitamins into your skin, prolonging age-fighting activity while reducing risk of irritation.