Vitamin C (ascorbic acid) is an antioxidant which may strengthen the immune system. It is needed for the growth and repair of tissues, the formation of collagen, the healing of wounds, and may also protect blood vessels. Vitamin C may also help improve the absorption of iron, when taken at the same time. Freeda's fine powdered unbuffered vitamin C (Dull C) and unbuffered crystalized C (Vita C) may be mixed into juices or water, or sprinkled on foods.* Our Vitamin C Powder and Crystals are also recommended by various cookbooks for use in cooking. It is most economical to purchase vitamin C in these forms. Note: To prepare "Effervescent C" mix vitamin C powder or crystals in a glass of water and add calcium or magnesium carbonate. 1/4 teaspoon = 1,000 mg *These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.