The main components of this product are L-ascorbic acid (vitamin C) and L-ascorbic acid sodium. Vitamin C is an efficient water-soluble antioxidant and is also an essential cofactor for collagen saynthesis. The core function is to help support the normal functioning of the immune system, protect cells from oxidative damage, promote the production of collagen in the skin to maintain skin health, and help enhance the absorption of iron from the diet.