So human grade B12 is Methylcobalamin and the vet stuff you’ll find all over the net is Cyanocobalamin. Personally, having used both, I strongly prefer the human grade, don’t think the vet stuff has nearly the same effect (if you disagree please explain why because the vet stuff is cheap and all...
USPS, Fedex, UPS, everyone across the board is having delays. Including trackers not updating. If it’s domestic it will come in. Hell, even Amazon packages are getting delayed. So relax guys.