CNP Professional Pro BCAA contains L-Leucine, L-Isoleucine and L-Valine. Combined, these three amino acids make up almost a third of skeletal muscle in the body. They support muscle growth and repair.These amino acids are in tablet form making them a convenient and effective way to add BCAAs to your diet. Due to their role in protein synthesis and muscle growth, increasing BCAA dietary levels may be of particular benefit to weight and strength athletes.CNP Professional recommend taking three tablets of Pro BCAA before and three tablets after exercise. They can also be taken on non-training days.