The Science in Sport GO Isotonic Energy Gel was the world’s first truly isotonic gel, engineered to deliver a rapid supply of carbohydrates without the need for additional water. Each sachet contains 22 grams of carbohydrate in a clean, easily absorbed formula that leaves your stomach quickly, helping to avoid the bloating or cramping often associated with thicker gels. This makes it an ideal energy source during high-intensity endurance events when your body needs fuel fast and hydration opportunities are limited.

Unlike many energy gels that require athletes to wash them down with fluid, the isotonic design of SiS GO gels means they can be consumed on the go without compromising hydration strategies. Trusted by elite athletes across cycling, triathlon, and running, the gels have been developed using scientific research to support peak performance. They’re also Informed-Sport certified, giving assurance that every batch has been tested for banned substances to the highest standard.

Whether you’re training for your first half marathon, taking on long course triathlon, or racing criteriums at high intensity, SiS GO Isotonic Energy Gels provide a practical, proven solution to maintain energy levels, delay fatigue, and help you perform at your best. With a wide variety of flavours available, they’re a staple in the fueling plans of both professional teams and everyday athletes.