NOW® Arginine Power Super Stack is the ultimate energy sports drink mix that also supports optimal performance. Arginine Power Super Stack contains Creatine, a well-studied sports supplement, for its ability to support increased muscle strength and muscle cell fuel availability. Yerba Mate and Guarana enhance alertness, while Rhodiola supports the body's balanced response to stress. Green Tea Extract (GTE) is a rich source of antioxidants that the body needs to quench the free radicals formed during intense exercise; GTE has also been shown to support heart health. This combination of ingredients makes NOW® Arginine Power Super Stack a great supplement for the use by any athlete - recreational or competitive.