Stable and nonacidic form of vitamin C that is effective as an antioxidant. Ascorbyl palmitate is particulatly effective at reducing free radicals generated from UVB rays and, due to its palmitate portion, is also a moisturizing form of vitamin C (Sources: Journal of Photochemistry and Photobiology, August 2009, pages 130-135; Pharmazie, October 2005, pages 751-755; and Biochemical and Biophysical Research Communications, September 1999, pages 661–665).