Paraxanthine, a compound your body creates when it breaks down caffeine, is being touted by some as a better alternative to coffee, offering energy and focus without the jitters. Click the link Glutathione System from Cyanobacteria to Higher Eukaryotes Encyclopedia MDPI Rapid and effective protocol to measure glutathione peroxidase activity Bulletin of the National Research Centre Springer Nature Link Figure 10. Glutathione Peroxidase Catalase Cooperativity Is Required for Resistance to Hydrogen Peroxide by Mature Rat Oligodendrocytes Journal of Neuroscience New Preclinical Study Shows Paraxanthine Enhances Memory and Brain Function Better Than Caffeine