does glutathione supplement work IM Glutathione Benefits & Side Effects

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

Journal of molecular medicine (Berlin, Germany) 98: 5969

For laboratories working with lyophilised peptides, bacteriostatic water provides a stable and convenient solution for dissolving powdered compounds into liquid form for precise measurement and handling

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

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