L-Leucine is an essential amino acid that is used in the biosynthesis of protein. L-Leucine may help with the maintenance of muscle mass while dieting as well as enhance muscle growth after strenuous exercise. L-Leucine is arguably the most important of the BCAAs. L-Leucine Powder is an excellent ingredient to add to your sport supplement arsenal.* DirtCheapSupps L-Leucine Powder is free of any binders or anti-caking agents. What you get is exactly what you are paying for...only the finest raw material without the fluff. Trust DirtCheapSupps for all of your supplement raw material needs. Every raw material is thoroughly tested utilizing both HPLC testing and FTIR analysis to determine both purity and potency. COA's are available upon request. *NOTE: These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Store this raw material in a cool and dark place. Keep away from children.