best way to inject b12 Vitamin Injection Sites B12 Injection Dosage and Frequency:

Injections are normally administered every other day

Cyanocobalamin specifically appears in most formulations rather than methylcobalamin, adenosylcobalamin, or hydroxocobalamin

Acetic acid lowers the pH, restores that positive charge, and keeps the molecules in solution

The solution should be clear and colorless

The math determines your concentration (mcg/ml) and tells you exactly how much to draw in your syringe for each dose

Along those lines, a quick online search does not show that the FDA has even classified 5-amino-1MQ as generally regarded as safe, which is the first step in making it available as a supplement