Worldwide has enhanced their thermogenic formula in Thermo Rush RTD with a STACK blend consisting of Beta Alanine in addition to Synephrine. Beta Alanine is a natural component of muscle cells and is one of thehottest ingredients used by athletes and bodybuilders. Orange Mango is the latest flavor on this energy line. Each sip will have you coming back for more of the thirst-quenching flavor, while each ounce of formula will help you push through your grueling workouts.