Here are the codes youll use for vitamin injections: J3420 ( Injection, vitamin B-12 cyanocobalamin, up to 1000 mcg ): This code is used for a vitamin B12 injection, which is used to treat or prevent vitamin B12 deficiency and certain conditions, such as pernicious anemia, that are related to vitamin B12 deficiency
If you intend to freeze a peptide solution, and especially if its a larger protein or enzyme, a cryoprotectant like 510% glycerol can be beneficial
doi: Rossi G, Pengo G, Caldin M, et al
Being me (sciencey minded) I've done my own trials on myself with in-date and out-of-date ampoules and found no difference
As always, before starting any drug or supplement, if you have concerns, please ensure you speak to your general practitioner to ensure you are medically cleared to take this supplement for gut health