VPX's proprietary Cross-Flow Quadrafiltration technology allows us to manipulate and selectively choose specific microfractions such as, IGF-1 and IGI-II that have specific functional properties such as, stimulation of lean muscle growth. One of many other advantages of our new technology is the ability to introduce Quardrapeptide Isolates. These particular peptides stimulate the release of opiate like chemicals in the body significantly improving one's pain threshold during intense training. Available in: Chocolate Vanilla Graham Cracker BACK TO:  | [VPX Page] | [Main Page]