Roles of glutathione in animals Antioxidant defense Download Table Dr. Glutathione (GSH) is the most prevalent, powerful antioxidant in the body and recharges other antioxidants, but our ability to produce it declines as we age. That's why it's a The Power of Glutathione: Benefits, Sources, and How to Incorporate It into Your Daily Routine Brandon Medical Center Looking for one antioxidant to rule them all? Look no further than Glutathione, AKA the "master" antioxidant. Support your cell defenses and help maintain your Glutathione levels with: Gluathione Nasal