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Common places for self-injecting B12 include: The middle of your thigh The meaty area of your hip Upper arm area Buttocks Fleshy part of your abdomen Some prescriptions are for subcutaneous injections delivered just under your skin
PMID: 10672992 Last reviewed: 2026-05-25 by American Peptides Research Team.
Doctors also use it in IV solutions where no preservatives should be present
Annals of the NY Academy of Sciences , 1194, 179189
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