With 22 fluid ounces, over 6,200 milligrams of active ingredients, and about as much caffeine as 3 cups of coffee, is it any wonder why this stuff is called EXTREME? Like its little brother, Extreme Speed Stack has DMAE, Guarana, Yerba Mate, and Theobromine. In addition, each even more-powerful serving provides Glucuronolactone, Taurine, and Garcinia, White Willow, Green Tea & Dandelion extracts. WHAT YOU NEED * Extreme Energy * Extreme Focus * Extreme Thermogenesis * Minimal Carbs & Calories WHAT IT'S GOT * 300 mg of Caffeine * Metabromine & DMAE * Green Tea & Garcinia Extracts * 2 g of Carbs, 10 Calories