all I know is that letro is the only thing that can actually eliminate gyno if you take it as soon as you feel something...I had some rather large itchy lumps from a heavy cycle of suspension and anadrol and by taking 1mg for 4 days the lumps dissapeared..it is really strong shit..I always keep it on hand...I have also noted that when I take winny or masteron along with heavy drugs like dbol anadrol and suspension, I don't get any water retention and no lumps...you should just be able to do a search, no? you just have to take some time and read everything...