B12 Injections: Pros and Cons Vitamin B12 injections deliver the vitamin directly into the muscle, bypassing the digestive tract
Whether and how any of this translates into a meaningful outcome for a specific individual is exactly the kind of question that belongs in a clinical evaluation, not a generalized article
The FDA cautions that these medications may not be suitable for everyone
Thinning skin, vasculitis, purpuric dermatosis, platelet deficiency, liver disease, vitamin K deficiency, vitamin C deficiency, moving your body during the injection, or dehydration may also cause bruising
It was previously available through compounding pharmacies as a bulk drug substance, but the FDA reclassified it as a Category 2 substance, which effectively restricts compounding pharmacies from producing it