What is glutathione? Aktif International Hospital Understanding Glutathione Deficiency Invigor Medical 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 ( Glutathione is the most important molecule you need to stay healthy and prevent disease yet you've probably never heard of it. It's the secret to prevent aging, heart disease, dementia and