Taking the governor off muscle-mass limitations is now possible with Biotest's brand-new supplement, called MYOSTAT? Super-Transforming Growth Factor?. Each bottle of MYOSTAT costs $69.95 retail and contains 40, 500-mg capsules of the special, myostatin-binding sulfo-polysaccharide CSP-3. And like all Biotest supplements, MYOSTAT has a 100% money-back guarantee, so there's no real risk on your part.