Glutathione is often referred to as the body's master antioxidant — a tripeptide produced naturally in every cell that plays a critical role in neutralizing free radicals, supporting immune function, and facilitating detoxification. As we age, glutathione levels decline, contributing to increased oxidative stress and cellular damage. Supplementing with physician-prescribed glutathione injections helps restore optimal levels, supporting skin brightness, immune resilience, energy production, and long-term cellular health.