I know when I reconstitute it, it will need to be refrigerated, but I am not going to be using it for a couple of more weeks. Would it be advisable to store the un-reconstituted vial in the fridge? I am thinking yes. I mean, it can't hurt.
Also, do you worry that HCG received by mail, has been exposed to heat, thereby reducing its effectiveness? Say it took you 3 weeks to receive it. It could have been stored in high temps during that time, and while heat affects it when reconstituted, I am sure it would affect the powder as well, just to a lesser extent. What do you think?