GNC PRO PERFORMANCE AMP GOLD SERIES BCAA ADVANCED in Blue Raspberry flavor is a dietary supplement designed to support muscle growth and recovery. It contains 6g of instantized BCAA in an optimal 2:1:1 ratio to prevent muscle breakdown during intensive workouts. Additionally, it includes 1g of citrulline, a precursor of arginine, for better muscle strength, and 1g of glutamine to improve recovery and immunity. This versatile sports drink is suitable for both pre- and post-workout use and is free from caffeine and creatine.