Quick Energy to Refuel. Serious athletes know the importance of refueling on the go to maintain their edge. POWERBAR® Gel and POWERBAR® Performance sport drink provide what athletes need while working out. Gel features C2 MAX, our optimized carb blend. C2 Max is formulated to provide the same 2:1 ratio of glucose to fructose carbohydrate sources which was shown in studies with trained athletes to provide a 20%-55% boost in energy delivery to muscles.