Big men, require big power. VAN-PRO Skull Juice provides the essential branched chain amino acids, L-leucine, L-isoleucine and L-valine in a formula for those with large mass. BCAAs are essential for muscular growth. The bigger you are, the more muscle you have, and the more nutrients you need. VAN-PRO Skull Juice is formulated for big men with big guns. Next time you workout, suck down some Skull Juice and grind it.