Glutathione is a natural antioxidant your body makes, and it can influence melanin production which is why its sometimes marketed for skin brightening., Oral supplements are mostly broken down in What is glutathione and why must we protect patient access to it? The Glutathione System: A Journey from Cyanobacteria to Higher Eukaryotes Glutathione (GSH) as an antioxidant. Hydrogen peroxide (H2O2) and Download Scientific Diagram