Extreme Speed Stack provides plenty of energy and hydration support with less than a calorie per ounce and zero sugar. The entire 22 ounce bottle contains about as much caffeine as 3 cups of coffee. The formula makes use of guarana, cocoa, yerba mate, green tea and dandelion extracts, and includes additional performance supporting ingredients including DMAE, taurine and glucuronolactone. Extreme Speed Stack provides uncompromising energy and hydration support with 20 calories per bottle and zero sugar.