Glutathione: Master Antioxidant, Detoxifier, and Immune Booster Kaplan Center for Integrative Medicine : McLean, Virginia Have you heard of the master antioxidant Glutathione? Well look at this: Supports the immune system Plays a essential role in the liver for detoxification Shown potential to Rupa Health Glutathione is often called the body's master antioxidantand for good reason. It works at a cellular level to help protect against oxidative stress, support detoxification, and keep your system functioning efficiently. But Glutathione Radiant Health. Glowing Beauty.