oral vitamin b12 vs injection Injections Supplements: Which are more effective? Vitamin B12 Intramuscular Injections Versus
Description
Korsakova 119, 133138

Patients with a history of severe gastrointestinal disease, particularly those with inflammatory bowel disease, severe gastroesophageal reflux disease, or history of pancreatitis, require careful evaluation before considering this therapy

Since these cells regulate follicle cycling, protecting them from premature death allows the growth phase to continue

But you can also dose up through shots or supplements

Expired vitamin solutions may have reduced potency and an increased chance of contamination or chemical breakdown
