A Caffeine-Free Version of the Classic Pre JYM Formula Pre JYM transformed the pre-workout market in 2013 with its transparent formula, substantial serving sizes (which were eventually copied by rival brands), and powerful ingredients that enhance both workouts and results.* There was just one sticking point with the original Pre JYM formula for some people: caffeine. Responding to consumer demand, Pre JYM now offers a stimulant-free version, catering to those who are sensitive to caffeine or prefer to use it late in the day without affecting their sleep. Your feedback was heard, and your wishes have been fulfilled! No Stimulants, All The Results Everything other than caffeine is the same with this version of Pre JYM: intense muscle pumps, muscular endurance for workouts, mental focus, and last but not least, delicious flavor. For those not keen on caffeine, this is the perfect pre-workout! Harnessing the Power of Amino Acids Just like the original formula, Stim-Free Pre JYM utilizes amino acids—the essential components of protein—to energize muscles for optimal training sessions. Key ingredients like BCAAs, creatine, beta-alanine, and betaine help lay the groundwork to support muscle growth, muscular endurance, and overall athletic performance.* Enhanced Mental Clarity  With a blend of the nootropics Alpha-GPC and Huperzine A, Stim-Free Pre JYM still helps promote mental focus, helping you get into "the zone" during workouts. With these nootropic agents, you won’t need caffeine to experience your best training sessions.* Intense Muscle Pumps Experience a satisfying pump throughout your workout by supporting nitric oxide (NO) production and enhancing blood flow to the muscles, helping to deliver that coveted pump during your workout and lasting fullness afterward.* Pre-Workout For All Pre JYM completely changed the pre-workout category, and now the award-winning pre-workout formula is accessible to caffeine-sensitive individuals. Along with Pre JYM X, Naturally Sweetened Pre JYM, and the original formula, there’s a Pre JYM for everyone!