is it legal to inject vitamin b12 yourself Shots at Home: How, Where & How Often B12 Injections at Home -
Description
S-adenosylmethionine, the methyl donor utilized in all cellular methylation processes, is derived from methionine 16

There are two types of B12 shots involved: Cyanocobalamin is a synthetic drug that naturally breaks down in the body to methylcobalamin and the poison cyanide

It is not for human or animal use, and not for therapeutic or diagnostic applications

Notably, NAM serves as the substrate for NAD + synthesis in the salvage pathway (Pissios, 2017)