Concentration, total formulation composition, pharmacy reputation, and cost matter more for most users
It is a humane duty that we properly dispose of our injection waste
Beyond this core list, several other conditions are commonly tied to B12 deficiency: autoimmune gastritis (which damages the parietal cells that produce intrinsic factor), ileal resection (surgical removal of the part of the small intestine where B12 is absorbed), chronic alcoholism , pancreatic insufficiency , nitrous oxide exposure (including recreational use, which inactivates B12), and increased demand during pregnancy and breastfeeding
Note: You can make a small tear on the edge of your alcohol wipe packages (one that doesn't puncture the inner pocket containing the alcohol wipe) to make them easier to quickly open when you need them
Most researchers don't maintain that discipline