Dietary Supplement With Rosehips, Citrus Bioflavonoids, Hesperidin & Rutin Potent Antioxidant Protection Purity & Potency Guaranteed Natural Factors C tablets contain 500 mg of Vitamin C in a blend of Citrus Bioflavonoids, Hesperidin, Rosehips and Rutin to optimize the body's use of Vitamin C. Bioflavonoids enhance the absorption of Vitamin C and act in synergy with Vitamin C to provide antioxidant protection, keep collagen healthy and help increase capillary strength. Vitamin C is a powerful antioxidant which supports healthy bones, cartilage, teeth and gums. It helps protect cells against environmental pollutants and deficiencies in the daily diet.