where is a b12 injection given Best Vitamin Sites: to Inject B12 · PA Relief Best Vitamin B12 Injection Site:

So not only do we need to be aware of the acceptable lower limit, but also the acceptable upper limit which is currently not well defined

There are two reasons

Vassilakos, G., Philippou, A

Frequently used in facial serums, scalp products and advanced anti-aging systems

less commonly used in adults Partial enteral nutrition may supplement medical therapy and support nutritional status Total parenteral nutrition (TPN) indicated for severe malnutrition, short bowel syndrome post-resection, or surgical preparation 17

Most B12 in the UK is injected into muscle, but the fatty subcutaneous route is a recognised alternative