Supplements to Slow Aging? Here's What the Glutathione, a Valuable Ally Against Oxidative Stress SoLongevity Glutathione is a powerful antioxidant naturally present in your body. It plays a role in reducing oxidative stress and is often marketed for skin brightening. But here's the truth Topical ( Sacramento Glutathione (GSH) is a crucial endogenous "master" antioxidant that protects the heart by reducing oxidative stress, neutralizing lipid peroxides, and preventing cell death. Low glutathione levels are consistently found in Glutathione: Role in Oxidative Nitrosative Stress, Antioxidant Defense, and Treatments Raj Rai 2021 ChemistrySelect Wiley Online Library Targeting oxidative stress in disease: promise and limitations of antioxidant therapy Nature Reviews Drug Discovery