GU Roctane Ultra Endurance Energy Gel (Island Nectars)

Roctane comes from years of testing scientifically-proven formulas with thousands of elite athletes training for and competing in the most physically-demanding sports in the world. Roctane's advanced formula amplifies GU's original Energy Gel recipe and adds new ingredients to boost your chances of success. It starts with the original Energy Gel's mix of complex and simple carbohydrates that provide quick and sustained energy, electrolytes for replenishment and caffeine to tap more power and diminish pain. From there GU increases the amount of histidine, an essential amino acid, to act as a buffer and slow the energy-sapping lactic acid build-up in muscles. Then they mix in higher levels of citrates (potassium citrate, sodium citrate, and citric acid) to help speed the conversion of carbohydrates into energy molecules and, like histidine, help mitigate acid build-up. They also add more of the branched chain amino acids (BCAAs) leucine, valine and isoleucine to serve as another fuel source, aid in recovery and help maintain mental focus and reduce fatigue by limiting the central nervous system's production of serotonin. Finally, they add a new ingredient, the amino acid complex Ornithine Alpha-Ketoglutarate (OKG) which limits the body's tendency to break down muscle protein tissue during extremely hard training and racing days. OKG keeps you going longer and promotes a speedier recovery.