GO Energy + Caffeine adds a physical and mental boost to exercise fuelling. 22g of carbohydrates maintain energy levels during exercise and 75mg of caffeine provides extra alertness when fatigued. No need for additional water, consume during the later stages of exercise when fatigue sets in. GO Energy + Caffeine Gel can be consumed 30-minutes before intense exercise for mental preparation. A further one or two gels can be consumed towards the end of your endurance exercise period when you feel you need a physical boost or to improve alertness and concentration.