Glutathione is an extremely important and powerful antioxidant produced by the body to help protect against free radical damage, and is a critical factor in supporting a healthy immune and respiratory system. The free radicals that damage to our cells exist in an oxidized state and are reduced by antioxidants such as glutathione. Glutathione exists in two forms in the human body; the first form is the reduced form which is the useful antioxidant that we want to have. Glutathione in its reduced form is able to donate an electron to an electron deficient free radical to reduce the free radical and eliminate it. When glutathione donates that electron, it becomes oxidized and unstable. With one electron missing glutathione binds to another oxidized glutathione molecule that has also given up one its electrons to from glutathione disulfide (GSSH). GSSH is a stable form of glutathione and can be reduced back to a single molecule through redox reactions (reactions involving electron transfers from one molecule to another) in the body.**