L-Leucine, sometimes simply referred to as Leucine, is a branched chain amino acid (BCAA), which also includes L-Isoleucine and L-Valine, that plays an important role in energy production and muscle maintenance.* BCAAs are considered essential because they cannot be produced by your body and must come from the foods you eat or a supplement.* It can be found in meats, dairy, wheat, and soy. L-Leucine, a nutrition supplements powder, is most commonly taken by bodybuilders and athletes to help boost athletic performance.* L-Leucine, a vegan BCAA powder, can also be taken as a supplement to increase muscle growth, promote athletic endurance and overall wellness.* L-Leucine is the most important of the BCAAs essential amino acids powder and is commonly taken as part of a pre-workout regimen to aid muscle recovery.* This BCAA supplement increases the bodys ability to synthesize proteins and promotes formation of new muscle tissue.* This L-Leucine product is in the powder form. It is pure, clean and free from any fillers or additives.