What is glutathione? Know as the most important antioxidant in the body, glutathione is an essential antioxidant manufactured in all cells, but primarily in the liver. It is essential because it Your body makes it. Time steals it. Glutathione the master antioxidant is the molecule your cells rely on to fight oxidative stress, detoxify, and keep inflammation in check. But Glutathione as a skin whitening agent: Facts, myths, evidence and controversies Indian Journal of Dermatology, Venereology and Leprology Who Offers Glutathione IV Therapy in San Antonio, TX?