Karbolyn is a clinically studied (with peer-reviewed, published research) carbohydrate supplement powder sourced from potato, rice, and corn. It’s designed for elite athletes looking for a fast, safe, and high-performance way to quickly and easily load muscles with lasting energy and for faster recovery. Karbolyn Energy also has an added stimulant (250 mg of caffeine) to give an extra “kick” for those who desire one.