Neither route is universally better the right option depends on your medical history, goals, and your providers recommendation
If youve been diagnosed with a B12 deficiency, received a B12 shot (or a course of them), and your B12 levels are now within the normal range, but your fatigue persists, its a strong indication that your tiredness is likely due to something else
Lindsey Yourman, associate clinical professor in the division of geriatrics, gerontology, and palliative care at the University of California San Diego School of Medicine
Q: Is Neurobion Forte RF Injection safe during pregnancy
The product label and COA should state the supplied counterion, formula, molecular weight used for identity confirmation, and whether the declared fill is salt mass or active-cation equivalent