Frontiers Glutathione: A Samsonian life sustaining small molecule that protects against oxidative stress, ageing and damaging inflammation Glutathione: Antioxidant Properties Dedicated to Nanotechnologies 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 Why is Glutathione the Key to Gut Health? The benefits of glutathione the king of antioxidants!