During intense exercise, you should provide yourself with up to 90g of carbohydrates per hour before and during activity. PowerGel Original is convenient during exercise due to its compact package size and non-chewing consumption. It contains a combination of various carbohydrate sources, making it a classic choice for athletes since 1996. Improved packaging: easy to open. The C2MAX dual-source carbohydrate blend contains a special ratio of glucose and fructose sources. It contains sodium, the main electrolyte lost through sweat. Blackcurrant and green apple: flavors containing 50mg of caffeine per serving.