Steroids outside of the Steroid Act and controlled substance list are a matter of conjecture and interpretation as to its legality.
If this wasn't the case, then congress wouldn't be trying to pass additional laws to include all those said compounds as controlled substances.
Trest
Desoxy
Dmz
MSten
Epi
Hdrol
The list goes on and on.
The Steroid Act of 1990 does 3 things really:
1) establishes penalties for physical trainers or advisors who endeavor to persuade or induce individuals to possess or use anabolic steroids.
2) adds anabolic steroids as a scheduled III substance under such Act. They were dumb enough to call it "a drug or hormone that promotes muscle growth pharmacologically similar to testosterone", and they included a list that was relevant at that time. Really subjective statement.
3) defines anabolic steroids, and then presumes to say that the penalties are to be applied to those distributing the steroids or GH. It never mentions users. Most states just set the definition of "intent to distribute" well within the bounds of personal use, so they can nab individuals for using it even though they were not distributing it.
Again, it penalizes businesses and individuals distributing the roids, but not necessarily the folks using them.
Other problem is, supps aren't drugs. Drugs treat or cure stuff. Supps dont.
Lastly, if one could argue the purpose of the supp was for something other than muscle building, such as mood enhancement, sex drive increase or perhaps strength increases, that could stand in court. In fact, if I ever decide to use Trestolone long term use, it'll be just for that reason - increased sex drive and vitality. Or whatever u wanna call it.
Laws are made to get around these days.