Ascorbic acid calcium salt dihydrate is widely used in the food and beverage industry as a dietary supplement to fortify products with both vitamin C and calcium. It helps in preventing vitamin C deficiency and supports bone health due to its calcium content. In pharmaceuticals, it is incorporated into tablets and capsules to enhance immune function and promote collagen synthesis. Additionally, it is utilized in cosmetics and skincare products for its antioxidant properties, which help protect the skin from oxidative stress and improve overall skin health. Its stability and dual nutrient profile make it a valuable ingredient in various health and wellness applications.