One teaspoonful supplies Vitamin C (ascorbic acid) 2000 mg. Vitamin C is primarily an antioxidant used to prevent infections, bruising, colds & flu, sinusitis, sore throats, blood clots, arthersclerosis, high blood pressure, physical and mental stress, weak immune system, cholesterol levels, liver toxicity and collagen formation. Usage: As a dietary supplement, add one teaspoonful of Twinlab Super C to 6 oz. of water, juice or your favorite beverage. Stir until dissolved. Add honey or sweetener, if desired.