alt Hacker NewsTo be fair, most everyone I know who is buying on the gray market considers vendor tests to be minimally required, but still insufficient -- there is no assurance they tested the product they shipped to you. Plan on testing it yourself. I'm sure some people do trust nexaph enough, though, to not worry so much. Whether that trust is well placed, that is a separate discussion.
With most of these you can really tell if they work or not and there is a pretty predicable dose dependent reaction profile. With slow meds like semaglutide you'd maybe not notice it in the first week but you will by week 3. I had mine tested but if that wasn't available I probably would have considered the anecdotal evidence to be sufficient. It appears that most of the scamming is just people taking the money and not shipping anything.