b12 injection sq vitamin injections im or CYANOCOBALAMIN INJECTION, USP 30000 mcg/30 mL (1000 mcg/mL) 30 mL VIAL Best Vitamin B12 Injection Sites:
Description
Some individuals have difficulty absorbing B12 through food or supplements, which can affect energy levels and impact the health of the body

Summers, A
Hanson RL, Imperatore G, Bennett PH, Knowler WC

Convenience Oral supplements are generally more convenient and less invasive than injections

Bibcode:2004PNAS..101.3729E
10.1159/000337945 [DOI] [PubMed] [Google Scholar] 13
