It’s a nondescript off-white powder, in the raw. Mine was packaged into capsules by the pharmacy, but I did pop one open to inspect because I had exactly the same curiosity lol.
I don’t have personal experience on this front, but I imagine for injected administration, which is the more common route, it would be made into solution or suspension and kept in a refrigerated multiuse vial, e.g.: 












Literally all the modern recompilations are AI-driven.
There are various levels of involvement of human actors in the loop, but if you don’t want to use any AI project, just ignore them all.