oral vitamin b12 vs injection Frontiers B12 Shots vs. IV Infusions:

The psychological boost of actively addressing your nutrition can also play a role in perceived benefits

Chronic oral toxicology studies in Han Wistar rats (6 months) and cynomolgus monkeys (9 months) found no treatment-related unscheduled deaths, toxicologically significant clinical signs, or adverse changes in organ masses, electrocardiographic parameters, or histological profiles at the concentrations examined

IM vitamin injections bypass the gut and 90% or more of the vitamin is absorbed by the body

Also, try to limit alcohol consumption during your treatment, as it can interfere with B12 absorption

Purity: 99% (HPLC verified)