Introduced in 2004 by Living Essentials, LLC, 5-hour ENERGY? is the original two-ounce energy shot. Despite dozens of imitators, it is still number one _ by a wide margin. Why? Because it works. Me-too energy shots try to fool you with sugar and herbal stimulants, but 5-hour ENERGY? gives you a proven blend of B-vitamins, amino acids and essential nutrients to keep you going strong. It has zero sugar, zero herbal stimulants and four calories. Available in 6 great regular strength flavors, 4 extra strength flavors and a decaf version. Have you tried 5-hour ENERGY? lately?