b12 injections where How to self-inject intramuscular vitamin - Overview Best Vitamin B12 Injection Site:
Description
Vitamin B12 supports the formation of red blood cells, nerve health, and metabolic function

In patients who are deficient, restoring vitamin C can **improve** collagen synthesis and tissue repair, and injections may help when oral absorption is inadequate

PMID 10552882

Vitamin B5 (Pantothenic Acid): Aids in hormone production and stress response
