Patrick covers this in his blog.
Here's the excerpt:
More info would be nice though, because I don't have access to any online articles for dienolone. Maybe anabolics 10th edition has itThe first compound is estra-4,9-diene-17b-ol-3-one (commonly referred to as “dienolone”). What is ironic about this compound is that the government scheduled it’s precursor (estra-4,9-diene-3,17-dione - erroneously referred to as “tren”) just last January. If you recall, the old “tren” products worked pretty well but at the same time they were not free of potential adverse side effects. Anyway, as effective a compound as tren was, expect this stuff to work a lot better – and for two reasons. First reason, this is the active hormone and so requires no in-vivo enzymatic conversion. Second reason, this is delivered in a transdermal base so bioavailability goes way up as compared to oral. This product scores an impressive 10:1 on the Hershberger anabolic/androgenic ratio scale, plus it’s got decent absolute anabolic potency. As of yet I have not heard of anyone using it and I don’t know if it has hit the shelves yet.