Vitamin C, also known as ascorbic acid and ascorbate, is a vitamin found in various foods and sold as a dietary supplement. It is used to prevent and treat scurvy. Ascorbic acid crystalline powder, also known as vitamin C, is a water-soluble vitamin that is essential for human health. It is commonly used as a dietary supplement to boost the immune system, prevent scurvy, and aid in the absorption of iron. Ascorbic acid is also used in the food industry as a preservative and antioxidant, and in the cosmetic industry as a skin brightening agent. Its applications extend to the pharmaceutical industry as well, where it is used in the production of various drugs.