Phases 1 and 2 acetaminophen metabolism. Acetaminophen consumed in Download Scientific Diagram Use Only as Directed ProPublica Tylenol and glutathione, actually explainedhere's the bullet points: * Lots of concern raised on social media re: glutathione depletion and acetaminophen use * Glutathione is used in the metabolism of acetaminophen and Acetaminophen toxicity EMCrit Project 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.