GAT Sport NITRAFLEX BURN is a pre-workout supplement designed to aid in weight management while also providing an increase in energy and focus during workouts. The key ingredients in GAT Sport NITRAFLEX BURN include: Nitrosigine – Clinically shown to boost energy, increase blood flow, enhance muscle volume and pumps, improve mental focus, and combat muscle damage. CaloriBurn GP – Accelerates fat-burning by activating brown adipose tissue (BAT), which burns calories rather than storing them. Caffeine anhydrous – Increases metabolic rate and energy levels. For best results, mix one serving (one scoop) of GAT Sport NITRAFLEX BURN with 10-12 oz of cold water and consume 20-30 minutes before your workout. Do not take within 6 hours of bedtime.