Antioxidant Potential of Glutathione and Crosstalk with Phytohormones Encyclopedia MDPI Paraxanthine may represent the next wave of clean energy drinks with smoother stimulation, fewer jitters, and potentially better focus. Inhibition of erythrocyte's catalase, glutathione peroxidase or peroxiredoxin 2 Impact on cytosol and membrane ScienceDirect Paraxanthine, a compound the body naturally produces when it breaks down caffeine, is starting to appear in energy drinks and even some coffee products as a potential caffeine alternative." Read our latest Glutathione metabolism. The activity of catalase and peroxidase enzymes Download Scientific Diagram