Dietary Supplement. Stimulates calorie burning. Increase energy & endurance. Prolab Advanced Caffeine is a proprietary blend of natural caffeine sources including the hot green coffee extract. White and green tea extracts, chocamine, kola nut extract and guarana extract. Prolab Advanced Caffeine helps stimulate a surge of adrenaline, dials you in with intense mental focus, and boosts energy levels to ignite your workouts. Prolab Advanced Caffeine helps keep you switched on by enhancing performance, strengthening endurance and stamina, and delaying the onset of muscle fatigue to power through the toughest workouts. Prolab Advanced Caffeine is not just a great pre-workout boost, it actually helps stimulate calorie burning too. So whether you want to feel the rush at the gym, be super productive at work, or you just want to light up your nightlife, Prolab Advanced Caffeine can help. No yeast, wheat, corn, milk, egg, soy, glutens, artificial colors or flavors, added sugar, starch or preservatives. (These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.)