Alphastra contains Appestat, a proprietary combination of green tea leaf extract and cinnamon twig, which may provide energy before and during strenuous workouts and may help replenish spent energy afterwards. How does Alphastra work? - Panax ginseng may help improve overall endurance capacity and may significantly improve endurance time to exhaustion. - Alpha Lipoic Acid (ALA) may guard against exercise induced oxidative stress, which can otherwise cause serious long term damage to the heart and lungs. - Fenugreek extract may enhance glycogen re-synthesis. Glycogen is used as an immediate reserve of energy for muscles throughout the body. Alphastra also contains Coenzyme Q10. Studies show this ingredient may help alleviate symptoms of chronic fatigue. If you have any serious health concerns, are pregnant or nursing, or are under the age of 18, you should consult a doctor before taking Alphastra. Each bottle of Alphastra contains 60 tablets. Serving size is 2 tablets daily.