Right now I'm only 10% skeptical if this is way too over dosed or not, but mpresearch exemistane is potent as hell. Only problem is maybe too potent? I'm 1 week into dbol cycle using mp stane and I'm dry as I've EVER been. My strength doesnt seem up to parr however which is why i think it may be dropping my estro levels lower than they should be. Someone mentioned possible letro, but I don't really think so because I feel great other than I've really never been this dry and the strength concern lol. Have at it. But be conservative!