best place for a b12 injection Vitamin Sites: Where to Inject B12 · PA Relief Instruction Guide for Intramuscular (IM)
Description
Always use different injection sites for each compound
Most of the problems that you will have concerning B12 come in the form of being deficient in the vitamin itself

This is an intramuscular injection that should be administered through the fatty tissue into the "gluteus medius"

There is, per ClinicalTrials.gov, no completed human efficacy trial for 5-Amino-1MQ
