Endurance
Paraxanthine vs Caffeine: The New Standard for Endurance Athletes
Most endurance athletes don't realize their caffeine strategy is working against them. Your CYP1A2 gene determines how you metabolize caffeine, and for slow metabolizers it can reduce performance, spike cardiovascular strain, and destroy GI tolerance on race day. Paraxanthine delivers the active metabolite directly for cleaner energy, faster cognitive response, and better gut tolerance when it matters most.