Study finds Enfinity paraxanthine enhances cognitive and memory measures better than caffeine Glutathione Participation in the Prevention of Cardiovascular Diseases 93% of Americans use caffeine daily, but nearly 50% are slow caffeine metabolizers?! That means millions of people experience more crashes, anxiety, and sleep issues from their morning coffee than the clean Paraxanthine may represent the next wave of clean energy drinks with smoother stimulation, fewer jitters, and potentially better focus.