Vitamin C-500 Orange Chewable Lozenges - Antioxidant Protection Vitamin C is a water soluble nutrient well known for its vital role in immune system function. It is also a potent antioxidant that can protect the body's cells and molecules from damage by free radicals and reactive oxygen molecules generated during normal metabolism and typical environmental exposures. This great tasting chewable Vitamin C supplement is naturally sweetened and naturally flavored. Natural color variation may occur in this product.