They don't want you, they may be trying to bust the research company or someone else but buying unscheduled medication without a prescription is such a small crime that they wouldn't waste much investigative power just to bust you. Besides. You just bought this stuff to do some experiments on rats anyways, however, just like others have said: You don't know anything about anything.
Unless you are buying this stuff and then selling it to guys in your gym, you have nothing to worry about.