Caruso's Vitamin C 1000 + Bioflavonoids is a unique Vitamin C supplement in that it contains a synergistic blend of multiple sources of Vitamin C plus Bioflavonoids. Caruso's Vitamin C 1000 + Bioflavonoids contains two buffered forms of Vitamin C to reduce acidity. It also contains two herbal sources of Vitamin C - Rosehips and Acerola to provide you with 1000mg of Vitamin C in each tablet.