HBM is a critical metabolite of the essential amino acid,L-leucine,and a key component of branched chain amino acids BCAA's . HMB supports significant increases in muscle strength and body composition lean body mass when combined with resistance training. HBM promotes muscle growth wile providing support against protein breakdown. Building and maintaining muscle is difficult at best,but with the help of HBM your goal is that much closer. Increase,assist muscle recovery and support increased endurance.