At first when I read that I thought they were [words=http://www.mattersofsize.com/join-now.html]penis enlargement pills[/words].
But thats a body building supplement, and I checked out a couple sites and there was a review by some guy that said the only side effect was a harder and bigger penis. And this was just on a regular bodybuilding site.
Then there was some guys talking about it on Penis Enlargement forum, but not for this purpose, just for bodybuilding....
So I doubt it has any more chance of growing your dick than any other anabolic.