The injection is typically given in a muscle, most commonly in the upper arm, thigh, or buttock
For people with absorption issues (and most adults over 50 have at least some), oral B12 simply doesnt deliver enough cobalamin to make a felt difference
This is why injections often work when pills do not, and it is why we prefer this route for serious fatigue or mood concerns
Since I was also having some major issues with low energy and mood, the Dr who helped me get through my original no estrogen issue suggested giving B12 shots a try
If you have accidentally left your vial out, our guide on how long compounded tirzepatide can be out of the fridge helps you assess viability, and what happens if tirzepatide gets warm explains the degradation mechanism
When a clinic needs to purchase vitamin b12 injections online, the legitimate route verifies the prescriber and the patient before stock moves