Those in search of the best branched-chain amino acid (BCAA) formula will find it with BPI Sports Best BCAA. Best BCAA is a great-tasting BCAA recovery sports drink powder. This extra-strength BCAA formula contains a fast-absorbing BCAA blend and CLA Matrix that support muscle recovery, improve endurance and stamina, and reduce protein catabolism (the breakdown of protein), which preserves lean muscle mass and may reduce soreness after a workout