Chris: Now what about that 1-androstenedione and 1-androstenediol stuff?
Bill: Okay, now at least we have a case of someone that’s trying to deliver something good!
These are prohormones, though ineffective ones
of 17beta-hydroxy-androst-1-ene-3-one, or Androst-1-ene for short. This is a very cool steroid, if you get enough of it in the system. It’s two or three times as potent as Testosterone, but it doesn’t convert to estrogen or DHT. And it’s a legal, natural product. Androst-1-ene is really the premier Class I legal steroid.
This, by the way, is the same thing that others are calling "1-Testosterone," not because it actually is any such thing, but because it's a name that has tremendous marketing appeal, so I suppose being wrong and deceptive is considered irrelevant.
These "1" compounds you mention were potentially interesting because they have some conversion to Androst-1-ene. If you had a very high rate of conversion, then these compounds could be nice products. Or if they were themselves inherently active, not needing conversion to help build muscle, again they could be good products. But that's not the case.
1-Androstenedione has no inherent activity, and only a poor conversion to Androst-1-ene. 1-Androstenediol is a better compound, but still is found to have only moderate potency, less than half that of 4-AD. Obviously not much converts; you don’t get much Androst-1-ene in the system, and it can’t have much inherent potency either, if any. In any case, it’s not very effective.