Leucine is one of the three branched chain amino acids (BCAAs) and is considered to be the single most important amino acid for muscle growth and repair, making it a key addition to support recovery and performance improvements. Research has shown that Leucine plays a vital role in the stimulation of the mTOR (mammalian target of rapamycin) pathway. Leucine also contributes to the growth in muscle mass as well as contributing to the maintenance in muscle mass. Leucine can be found in any high-protein foods. The foods highest in L-Leucine are red meat and dairy products. Supplements such as Whey and Egg Protein are also good sources. Our L-Leucine has been instantised to mix easily with a spoon. As with all LushProtein™ products, Certificates of Analysis (COA) are provided for all key ingredients for assured quality.