Measurement of superoxide dismutase, catalase and glutathione peroxidase in cultured cells and tissue Nature Protocols Paraxanthine Improves Markers of Cognition and Memory in Animal Study Nutraceuticals World Glutathione System from Cyanobacteria to Higher Eukaryotes Encyclopedia MDPI 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, Reduced, 120 Vegetarian Capsules (500 mg per Capsule) 1 Methylxanthine enhances memory and neurotransmitter levels