The JST SPC Whey protein supplement is a blend of Instantised, de-lactosed pure whey isolate, which provides high level of the Amino Acid fractions including L-Glutamine & BCAAs. The BCAAs are essential in the manufacture, maintenance & repair of muscle tissue. The SPC Whey is immediately absorbed, making the protein available for muscle building more quickly, & allowing the amino acids to be taken up by the muscles more quickly.