vitamin b12 injection where on body Best Site: Administering B12 Shots Vitamin B12 Injections for Energy,

Across the six published trials, the most common adverse events were headache, mild gastrointestinal effects (diarrhea, flatulence, nausea), nasopharyngitis, fatigue, dizziness, and mild injection-site reactions

These injections consist of essential nutrients like Vitamin B12, carnitine, choline, and inositol, all known for their significant impact on energy metabolism

Im also taking Berberine so I think both work amazing

Or you might need to take a B12 supplement.

This article looks at the specific attributes of methylcobalamin vs cyanocobalamin

The honest answer is more useful and less convenient: there is no universal dose that is correct for everyone, and the figures circulating on vendor pages and forums are not a safe basis for self-administration