Most people will say not to waste your time and, generally speaking, they're right. I was using 200mg every 5th day and got (aesthetically speaking) great results by the end of a 16 week cycle. Am naturally lean, but Primo got me even leaner and more vascular. Put on 10'ish pounds and still have it a few months post cycle. Was shut down pretty good after all was said and done, but Clomid along with Anabolic X's PCT and Tribulus got me back in a couple of weeks. Not saying that it'll be like that for you, but that's how things went down for me.