types of vitamin b12 injections methylcobalamin Compounded (Vitamin B12) Injection, 5mg/mL Vitamin B12 Monthly Injection: Typical
Description
En raison de la qualit de ces produits, nous ne pouvons ni les retourner ni les rembourser

So, just not getting anywhere

Guilland 2013, p

The Lancet, 336(8712), 392-395

Blood Test: A simple blood test is performed to measure your B12 levels

If so, was the result negative