It is widely applied as a dietary supplement food preservative (antioxidant) and in pharmaceuticals to treat scurvy and support immune function.

Its primary purpose is acting as an essential nutrient and potent antioxidant protecting cells from oxidative damage by neutralizing free radicals and aiding collagen synthesis.

Ascorbic acid also known as vitamin C is a water-soluble organic compound with the chemical formula CHO appearing as a white to pale yellow crystalline powder that readily dissolves in water.