When I was designing the Chemix Intra workout formula, I wanted to really focus on what causes fatigue rather than just adding carbs and amino acids. Carbs are certainly important, as glucose(dextrose) is the main substrate for glycolysis- one of the body’s pathways for making ATP(energy). Choosing the right carb source was critical in order to maximize performance in the gym. Cluster Dextrin, or highly branched cyclic dextrin (HBCD) is a high molecular weight cyclic molecule of dextrose. It has a low osmotic pressure, meaning it can be easily absorbed in the stomach and used for quick energy.