Fein energy crystals can be added to any favorite beverage, even water, to make it an energy drink without altering the flavor. Fein's formula is all-natural caffeine citrate and a suite of secret, 100-percent natural “taste erasers.” It is the only energy drink product to use caffeine citrate as its primary source of caffeine, making it an all-natural, soluble power plant for busy people on the go. Fein delivers 75 mg of caffeine per stick with zero sugar, calories, carbs and artificial ingredients with no taste or aftertaste.
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