Endural Optimizer is an advanced, sustained energy and recovery formula developed for the endurance athlete. It delivers a balanced blend of peptide-bonded amino acids, glucose polymers, and fructose, offering a superb source of metabolic fuel to working muscles and other tissues. The blend of carbohydrate energy sources in Endura Optimizer has been scientifically designed to help performance and endurance. Sustained Energy and Recovery Formula: Endura Optimizer is an advanced, easy to digest energy drink developed for athletes and individuals who demand a superb source of fuel for prolonged exertion. Protein is essential to muscle recovery. Endura Optimizer features Whey Protein Hydrolysate, know to have the highest "biological value" of any protein. The Whey Protein Hydrolysate is designed for excellent absorption and utilization. Endural Optimizer is Lactose-free.