NOW® Energy combines a comprehensive array of nutrients & dietary ingredients that provide your body with a natural source of energy. This formula does not contain Ephedra (Ma Huang). Instead, we use ingredients such as Guarana, Yerba Mate & Green Tea to provide a natural source of caffeine & support for the thermogenic processes in the body.* This product contains Niacin which may cause temporary flushing, tingling or skin reddening. Pregnant or lactating women, those with medical conditions or those taking prescription drugs should consult their health care provider before using this product As a dietary supplement, take 2 capsules twice daily with 8-12 oz. of water, preferably with or before meals as needed. Gelatin (capsule) & Magnesium Stearate (vegetable source). Contains soy derivative.