Recover Faster Recover Better Come Back Stronger Naturally Flavored 4:1 Carbohydrate Protein Formula Dietary Supplement For Exercise Lasting More than One Hour Developed by leading exercise physiologists Endurox R4, with its patented† ratio of carbohydrates to protein, is proven to speed muscle recovery and reduce muscle damage following exercise. No product can help your muscles rebuild and recover faster.Endurox R4 is proven to help muscles: Recover Faster Replenishes muscle glycogen levels 128% more than a carbohydrate drink*Carbohydrate/protein formula rebuilds muscle protein 38% more than a protein drink* Recover Better Reduces post-exercise muscle damage up to 36%*Come Back Stronger Extends endurance up to 55% in a subsequent workout*