best needle gauge for b12 injection What and length should be used an intramuscular vitamin in an adult? B12 Shots at Home: NHS
Description
Compared with broader metabolic compounds used in receptor-led research, 5-Amino-1MQ 5mg is better suited to mechanism-specific work centered on nicotinamide N-methyltransferase activity and related intracellular signaling behavior

Promoting improved DNA synthesis
The injection process is quick, virtually painless, and can be completed in just minutes during a routine visit

A dose of 100 mcg daily for six or seven days should be administered by intramuscular or deep subcutaneous injection

So how to explain all the anecdotal evidence that seems to prove B12 works for so many