Ripped Fuel Extreme Twinlab Ripped Fuel Extreme contains thermogenic fat loss ingredients along with a proprietary herbal blend to promote weight loss.* One of Ripped Fuel Extreme´s thermogenic ingredients is Caffeine. Caffeine is a power and energy accelerant!* It´s perfect to super energize your body for powerful workouts.* This fast-acting substance delivers the right molecular structure to your energy systems for optimal energy and power output.* The Product: An advanced weight loss product that has Caffeine, Green Tea leaf extract, Cayenne fruit extract and L-Carnitine.* End Result: Encourages the body to naturally promote fat metabolism.* Science: Contains a thermogenic blend in addition to the herbal proprietary blend that works together to support fat loss and promote lean body mass.*