5,000 mg Branched Chain Amino Acids Researched Supported 2:1:1 Ratio 5 g BCAA Promotes Training Recovery & Endurance Natural & Artificial Flavors 30 Servings Dietary SupplementRSP BCAA 5000: The Science RSP Nutrition BCAA 5000 powder has been formulated using the research supported 2:1:1 BCAA ratio. BCAAs play a critical role in muscle protein synthesis and act as a fuel during exercise. Not only is there scientific research supporting BCAAs for improving muscle recovery but they also have been shown to help preserve existing muscle tissue. Additionally, BCAAs play an important part in the maintenance of immune system function. Helps improve protein synthesis & nitrogen retention. Accelerates muscle recovery and fatigue reduction. Promotes lean muscle growth.