I think there's a magical invisible line in the sand we all have to cross when we accept the fact that we are buying powder in vials from fkn China to 'do research' with, and that there are absolutely zero guarantees, zero safety nets, and zero assurances beyond 3rd party tests(LOL) and a few other tiny things that give us some quantifiable peace of mind about buying powder that has a greater than 0% chance of being anthrax or absolutely nothing.
Some cross that line after much deliberation and research, some dont think about consequences until long after they crossed over, but all of us have to look in the mirror and accept that we agreed to this for better or worse.
But flirting with the line and looking for a well traveled path is only going to make you fret more, friend. There's a reason this is all off the beaten path. You just gotta jump on in. The water is...mostly fine, probably. Some kid might've pissed in it but that builds character!
You'll figure it out! Everyone else here did/is doing so. 🖖