Cook MyoSite | 5,185 followers on LinkedIn. We're on a mission to make regenerative medicine a part of everyday medicine. | Cook MyoSite is on a mission to make regenerative medicine a part of everyday medicine. As an industry leader in muscle cell technology, we’re establishing new paradigms for muscle-related disorders. Established in 2002, Cook MyoSite was created to guide the Cook Group organization into the expanding world of cellular technologies.