* Advanced Formula * Compare and Save * Enhances Diet * Provides Energy * Promotes Weight Management Goals * Thermogenic Support * Dietary Supplement * Diet Plant Enclosed * Guaranteed Quality Laboratory Tested Xtreme Lean promotes metabolism through thermogenesis (the production of heat to burn calories). Caffeine from Yerba Mate and Metabromine Extract also helps boost energy levels. There"s also Green Tea Extract with naturally occurring EGCG and Ginger Extract. By combining the strength of Xtreme Lean with a reduced calorie diet any daily exercise program, you"ll be well on your way to achieving the weight management goals you want. Diet Plant Enclosed.