Dr.RheumBOS said:

HbA1c reflects roughly three months of average glycaemia weighted toward the most recent weeks, which is why repeating it at six weeks tells you very…

Genuinely useful, thank you. I had the facts and not the framework. Printing the relevant bit and taking it with me.

Adding the clinical framing, because it changes how the question reads. If two explanations both fit, the useful question is which one predicts something the other does not. That is answerable; arguing about which sounds more plausible is not.

jim_asheville said:

My experience ordering cross-border ordering internationally: I've ordered from an Australian compounder.

Pushing back on jim_asheville here. I think the framing smuggles in the conclusion. Ask it the other way round and the obvious answer reverses, which usually means the question is doing the work.

Worth separating that from glycaemic control, which this thread keeps folding into the same question. They behave differently and the advice does not transfer.

One concrete data point for the thread. If you are going to change something, change one thing and give it long enough to express itself. Four weeks is the usual minimum for anything pharmacological on this board, and two weeks of data has told you almost nothing.

Moderator note: leaving this open. It is being argued well and the disagreement is the useful part. No action needed from anybody.