does glutathione supplement work IM how does l glutathione work

The short answer is that it depends on which form of B12 you have

What Drugs Are Tested

Blends are used in research to study the two compounds together rather than reconstituting and combining them separately

Several factors affect how often B12 injections are needed: The severity of the initial deficiency The presence of neurological symptoms Underlying health conditions affecting B12 absorption The patients response to initial therapy Ongoing monitoring of serum B12 levels By customizing the injection frequency for each patient, we make B12 therapy more effective

This is one reason pharmacists prefer concentrations that produce sub-1 mL doses