where do b12 shots get injected How to self-inject intramuscular vitamin - Overview Where to Safely Inject B12:

The common ones are a little stinging, redness or swelling at the site, a small harmless lump, or occasional bruising if a tiny blood vessel is caught

Understanding 5-Amino-1MQ: A Molecule That Helps Preserve NAD+ What Is 5-Amino-1MQ

Shelf life: 24 months, properly stored, in a sealed container

The vitamin is then transferred to TC2, which serves as the circulating plasma transporter, hereditary defects in the production of TC2 and its receptor may produce functional deficiencies in B 12 and infantile megaloblastic anemia, and abnormal B 12 related biochemistry, even in some cases with normal blood B 12 levels