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Antioxidant Power of Vitamin CNon-GMOA Dietary SupplementVegetarian/VeganHalal How It Works: Vitamin C is an essential nutrient well known for its support of healthy immune system function. It is also an important antioxidant that has been shown to regenerate other antioxidants within the body including vitamin E. Vitamin C plays an important role in a number of metabolic functions including the activation of folic acid. Because vitamin C is a critical cofactor in the formation of collagen it helps maintain the connective tissue that supports skin bones teeth and arterial walls.