Fein is an all-natural neuro-active beverage crystal in single-serving “sticks” that can be added to water or any other liquid without changing the flavor. Fein provides 75 mg caffeine, a similar amount to many 8.3-oz. energy drinks, the company says. Fein has no calories, carbohydrates or sugars.
For more information, visit www.GetFein.com or call 800-506-3346.