Encouraging new research suggests that the caffeine and antioxidants from guayusa may help cognitive performance in gaming. The study highlighted AmaTea® Max, a patented organic guayusa extract, demonstrating the ingredient's therapeutic effects on focus, reaction time, and stamina during 4 hours of gameplay. Additionally, the study showed gamers using AmaTea® Max had no jitter response compared to a significant increase in jitters reported in gamers using synthetic caffeine.