Dietary Supplement. Definition. The Science Behind the Size: Product - A high-tech synergistic blend of MaHuang and Guarana extracts, L-Carnitine and Chromium. Result - Stimulates fat loss and preservation of lean body mass. Science - Research shows that when ephedra alkaloids are combined with other ingredients having similar properties the result in one of a potentiated thermogenic effect. (These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.)