Vitamin C 500mg -1000mg 30 Tablets 30 Servings USA FREE SHIPPING 500mg per tablet1000mg per 2 tablets Vitamin C is an important, water-soluble, vitamin that has demonstrated supportfor many parts of the immune system. In fact, the most common reason peopletake vitamin C is to support their immune system. Vitamin C helps support goodimmune function by encouraging the production of white blood cells - known asphagocytes and lymphocytes - which can help protect the body against viralinvaders.Boosts immune system function and antioxidant reserveBuffered with minerals to prevent potential stomach upsetHelps combat free radical damagePer GMP guidelines set forth by the FDA, most products are formulated for 24 months from the date of manufacture.