The Biological Functions of Glutathione Encyclopedia MDPI Glutathione Injection Cost, Benefits, Side Effects 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 Dr. Glutathione (GSH) is the most prevalent, powerful antioxidant in the body and recharges other antioxidants, but our ability to produce it declines as we age. That's why it's a Have you met our new and improved Liposomal Glutathione? This powerful formula does more than just boost your glutathione levels, it supports your body where it matters most:, Supports gut health &