Glutathione Injections for Effective Skin Whitening Glutathione is often misunderstood as a skin whitening solution but the science tells a very different story. It is primarily an antioxidant that works against oxidative stress and free radical damage inside 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 Glutathione for Skin Lightening : Does It Really Work? Isaac Luxe Glutathione: The Master Antioxidant Core Med Science