Vitamin C + Zinc is a balanced tri-ascorbate blend developed to provide support for the immune system. Ascorbic acid, sourced from natural corn is bound with zinc, magnesium and calcium to buffer it and therefore reduce the acidity. This makes it gentler on the stomach. The addition of zinc also supports normal immunity.Vitamin C plays a crucial role in many parts of the body and as well as supporting normal immunity, it is known to contribute to normal collagen function which is needed for many structures in the body including skin and blood vessels, as well as supporting normal psychological function and iron absorption. It can also assist in supporting the protection of cells from oxidative stress and helping to reduce tiredness and fatigue.