self injecting vitamin b12 Shots at Home: How, Where & How Often to Inject Yourself Instruction Guide for Intramuscular (IM)
Description
Vitamin B12 studies in total vegetarians (vegans)
Subcutaneous While less common, these injections are still an effective injection method where the needle is inserted just below the skin

[DOI] [PubMed] [Google Scholar] 145.Okada S, York DA, Bray GA, Erlanson-Albertsson C

It is a research compound and is not FDA-approved
