Methoxyflavone: First Choice of Bodybuilders 3959 Methoxyflavone (5-methyl-7-Methoxyisoflavone) is a semisynthetic vegetable isoflavonoid used in sports to increase strength, increase muscle mass and burn fat. Methoxyflavone is a slightly modified formula of Ipriflavone (7-isopropoxyisoflavone), but the effects vary significantly. Currently, Methoxyflavone is widely used in bodybuilding as a sports supplement under the guise of commercial studies, according to which Methoxyflavone has a pronounced anabolic effect on the human