b12 and b12 with mi injections IM Vitamin Shots | Spoken Med spa Compounded Hydroxocobalamin (Vitamin B12) Injection

A drawing needle may be different from an injection needle

Re-Energize and Fight Your Fatigue Vitamin B12 is an essential nutrient your body needs to support DNA production, and healthy red blood cells and nerve cells

Originally developed by Metabolic Pharmaceuticals in Australia during the 1990s, this synthetic peptide was designed to harness growth hormones fat-mobilizing properties while avoiding the metabolic complications associated with full-length GH therapy

This means they dont trigger IGF-1 production, dont promote cell proliferation, and dont cause the insulin resistance or blood sugar disruption associated with full-length HGH

B12 is not a standalone treatment for anxiety or depression

That should give you a better understanding of what causes B12 side effects