MuscleTech Myobuild BCAA Amino Acids Supplement, Muscle Building and Recovery Formula with Betaine & Electrolytes, Fruit Punch Blast, 45 Servings (416g)

MyoBuild® 4X is precisely formulated with a 4g dose of L-leucine (in 2 scoops). Leucine is the most critical of all musclebuilding amino acids and has the highest anabolic potential, because it activates protein synthesis within the muscle via the mTOR pathway. MuscleTech® researchers ensured each serving of MyoBuild 4X has this exact 4g dose of leucine that was shown in a clinical study to help subjects increase their 5-rep max strength by over 40%!