b12 injection sites subcutaneous Vitamin Best Vitamin B12 Injection Sites:

You can expect the benefits of vitamin injections to last for about a week

Common amounts include 1mg, 5mg, 10mg, or 15mg

By inhibiting the NNMT enzyme, it prevents the excessive consumption of NAD+, a critical molecule that your cells need for energy production, DNA repair, and maintaining healthy metabolic function

1 Introduction Vitamin B12, or cobalamin, is a water-soluble vitamin, that plays an essential role in cellular metabolism, particularly in DNA synthesis, methylation processes, and mitochondrial functions ( Lactobacillus spp ) ( Clinically overt vitamin B12 deficiency, characterized by hematological and neurological dysfunctions, is relatively uncommon

Note: over supplementation with folic acid can cause symptoms similar to the symptoms of B12 deficiency...and they can be very unpleasant..as I know to my cost (I inadvertently over supplemented when first diagnosed )