EndoResFellow said:

The pattern that distinguishes a bad batch from an exit is behaviour rather than product.

International shipping tracking for cross-border ordering orders: my experience with customs in the US when ordering from overseas:

Seized and destroyed — had to get a reshipped package.

Tips: always include a copy of your prescription, declare medication properly on customs forms, keep quantities reasonable (personal use = 3 month supply max), and use a vendor who has experience shipping to your country.

sean_dublin said:

Agreed, with a caveat about community reputation: it is a lagging indicator.

Saving this. It is the first explanation that did not require me to already understand it. I will report back once I have actually tried it.

EndoResFellow said:

The pattern that distinguishes a bad batch from an exit is behaviour rather than product.

I disagree that testing history is decisive. It tells you what a supplier did when they were being watched. Continuity of behaviour under stress — a late shipment, a failed test, a complaint — is more predictive than any run of good results.

Adding the numbers, since they settle part of this. If you are comparing against somebody else’s result, check that you are comparing the same measurement taken the same way. Most of the apparent contradictions in these threads dissolve at that step.

Moderator note: reminder that nothing in this thread is medical advice, and that clinical claims need a source.