With B12 injections, the most common side effects are super mild
[12] Gastric acid-suppressing agents (proton-pump inhibitors and H-receptor antagonists) diminish dietary B12 liberation from protein complexes, a pharmacodynamic interaction that can exacerbate underlying deficiency
You might not have a dramatic "before and after" moment, but over a few weeks, things just start working better sleep feels more restorative, workouts feel less effortful, and the afternoon slump eases
However, I had a hysterectomy and I feel like the vitamin C helped me heal quicker than I wouldve otherwise
Injections are particularly recommended in specific clinical cases of vitamin B12 deficiency because they allow for a considerably high intake
It is used as a release agent and as a component or lubricant in the production of pharmaceuticals and cosmetics