Glutathione, often dubbed the master antioxidant plays a crucial role in detoxification, immune function, and protecting our cells from oxidative stress. Here are some signs that your levels might be low: Persistent Yes there is good evidence that acetaminophen (the active ingredient in Tylenol) can deplete glutathione under certain conditions. But whether that matters depends on dose, duration, and individual factors. Glutathione Injections: The Master Antioxidant for Health & Vitality: Envizion Medical: Wellness Center What is Glutathione and How Do I Get More of It? Mark Hyman, MD