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 in Skin Aging and Tissue Regeneration: A Systematic Review of Molecular Mechanisms, Redox Modulation, and Biomedical Implications How Much is Too Much? Mastering Your Glutathione Injection Dosage Per Week Does Ibuprofen Deplete Glutathione? Understanding the Connection Cymbiotika CYMBIOTIKA