Dr. Johnson’s 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 bioflavanoid complex (citric) for maximum daily Vitamin C intake. The bioflavanoids are protective antioxidant factors, which help to strengthen the blood vessels, veins, and capillaries in your circulatory system. The 500 mg of bioflavanoids plus rutine, hesperdone complex and acerola is one of the best combinations to help the Vitamin C support the pain killing qualities of the body. We also added quercetin to help the eyes.