The Jan Marini C-ESTA Face Serum is a powerful antioxidant cocktail, featuring a lipid-soluble form of Vitamin C, DMAE, and hyaluronic acid to help reduce the appearance of fine lines and wrinkles and uneven skin texture while simultaneously protecting the skin from free radicals caused by UV exposure and environmental stressors. In a split-face Vitamin C study published in the Journal of Drugs in Dermatology comparing C-ESTA to a leading vitamin C, Jan Marini's C-ESTA Face Serum was shown to reduce the appearance of fine lines and wrinkles while providing superior benefits to the leading traditional Vitamin C. C-ESTA Face Serum was also significantly preferred by study subjects over the leading traditional vitamin C. C-ESTA's lipid-soluble form of vitamin C enables this potent antioxidant to substantially assist the skin without the need for harsh acidity levels required by traditional forms of Vitamin C - meaning superior benefit with less irritation. DMAE enhances Vitamin C's face oil benefits by helping to further reduce the appearance of fine lines and wrinkles giving facial contours a tighter, firmer, more "lifted" look. C-ESTA Face Serum is the preferred Vitamin C and antioxidant solution for younger, healthier-looking skin. This Jan Marini Vitamin C serum is great for all skin types.