Sweet Potatos Skin Super Food Did you know that snacking on sweet potatoes can help your skin stay clear, smooth and young-looking? The reason: Crayola-colored orange in sweet potatoes comes from beta-carotene, an antioxidant that converts to vitamin A in your body and switches on DNA that’s in charge of producing new skin cells and shedding old ones. A regular influx of new cells keeps the surface of your skin smooth, fresh-looking and resistant to irritants and damage. (It’s no coincidence that some of the best topical healthy-skin ingredients in beauty products, retinoic acid and retinol, are derivatives of vitamin A.) Plus, beta-carotene acts like Pac-Man, eating up free radicals that cause DNA mutations that can lead to wrinkles.