Amino rush BCAA 2:2:1 is a very versatile product. Consume amino rush 2:2:1 prior to a fasted workout, or during a workout or athletic event. Amino rush 2:2:1 can also be stacked with your favorite pre and post-workout supplement, such as shotgun 5x or synthesize. Always drink 12 to 16 ounces of additional water with each amino rush 2:2:1 drink.