Glutathione facts: 1. Glutathione is an important antioxidant in the body that helps protect cells from damage caused by free radicals. It is found in almost every cell and is composed of The Food and Drug Administration (FDA) warns the public on the dangers associated with the use of injectable lightening agents such as glutathione and Vitamin C. In the Philippines, several health and Does glutathione pose a danger or have side effects? Glutathione and Side Effects: What You Need to Know for Better Health Performance Lab Neuronal glutathione loss leads to neurodegeneration involving gasdermin activation Scientific Reports Glutathione: Master Antioxidant, Reducing Oxidative Stress, and Detoxification