Mega C 1000 mg (100 tablets) is the most comprehensive Vitamin C formula. Each Mega C-1000 tablet supplies one gram of Vitamin C plus bioflavonoid complex (citric) for maximum daily Vitamin C intake. Bioflavonoids are protective antioxidant factors that help strengthen the blood vessels, veins, and capillaries in your circulatory system. The 500 mg of bioflavonoids plus routine, hesperidin complex, and acerola are among the best combinations to help Vitamin C support the pain-killing qualities of the body. We also added quercetin to help the eyes.