[REVIEW] GL Biochem — anyone have experience?

pat_auckland said:

The useful checklist is about verifiability rather than presentation.

No disagreement with pat_auckland. One condition attached. Prices dramatically below market are the strongest single signal, and the reason is arithmetic rather than suspicion. Synthesis, testing, and cold-chain shipping have floors. A price well under the floor means something was skipped, and the two things that get skipped are testing and content.

I would rather be corrected than agreed with, if it comes to it.

pat_auckland said:

The useful checklist is about verifiability rather than presentation.

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.

Taking the question as asked, rather than the general version of it. The pattern that distinguishes a bad batch from an exit is behaviour rather than product. A bad batch comes with communication, a reshipment offer and a batch number. An exit comes with slower replies, pressure toward less reversible payment methods, sudden discounting, and the same reassurance repeated without any new information. The product tells you less than the correspondence does.

RetaRick_CA said:

Prices dramatically below market are the strongest single signal, and the reason is arithmetic rather than suspicion.

This matches mine closely enough to be worth saying so out loud. Nothing to add that would improve it.