Get up and keep going with tangerine-flavored Function: Alternative Energy, the first time-release formula for long-lasting energy. The all-natural combo of Catuaba, Muira puama, Epimedium, and Yerba Mate can support your body's stamina for up to six to eight hours. Alternative Energy employs the concept of pharmacokinetics–simply put, the rate at which an ingredient is absorbed into and distributed throughout the body. This formula uses four different classes of stimulants that kick in at different rates for a smooth, consistent energy and mood boost without a hard crash.*

Are you as tired as we are of all those artificial, toxic-tasting energy drinks? Or are you just plain tired? The docs at Function worked around the clock to develop a 100% natural energy formula that can keep you going all day and all night long. They've assembled an all-star team of rare rain forest imports (now grown at home), including Catuaba, Muira puama, Guarana, and Yerba Mate, which release energy at a smooth and consistent rate over a period of time for a predictable, reliable energy.*

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