Glutathione is considered the master antioxidant. It is produced by the liver and is critical for detoxifying the body. As the master antioxidant, it can help reduce free radicals which some consider the cause of aging. Certain medications can place stress on the liver decreasing glutathione levels and liver health. When the liver functions more efficiency health is improved. Lastly, improved liver functioning may help lower estrogen levels in men, which can contribute to a leaner body, improved sexual performance and less side effect from testosterone.