IsoStack is a super anabolic flavone complex that contains 7-isopropoxyisoflavone, 5,7-dihydroxyflavone, 20-hydroxyecdysone, isoflavonol™, and triboxybol™. IsoStak can help you grow. Naturally. Without steroids or prohormones like andro and 19-norandro. That's why IsoStak can be safely used by those athletes who want to avoid side effects of prohormone-based products. (60 Capsules)