Prolab Advanced Caffeine is a proprietary blend of natural caffeine sources including the hot new Green Coffee Extract, White & Green Tea Extracts, Chocamine, Kola Nut Extract & Guarana Extract. Advanced Caffeine helps stimulate a surge of adrenaline, dials you in with intense mental focus, & boosts energy levels to ignite your workouts.* Advanced Caffeine helps keep you switched on by enhancing performance, promoting endurance & stamina & delaying the onset of muscle fatigue to power through the toughest workouts.* 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, Advanced Caffeine can help.*