The Roctane Ultra Endurance Energy Gel improves upon GU's original recipe incorporating advanced ingredients to boost your performance. The Roctane features a superior mix of complex and simple carbs for quick and consistent energy, includes electrolytes to keep you replenished, and contains caffeine to help you power through a long day in the saddle. The Roctane's formula offers a long list of amino acids that slow lactic acid production and fight fatigue. GU's formula also includes OKG, an amino acid that limits the body's tendency to break down muscle protein tissue, which helps you recover quicker.