side effects from b12 injections do have Benefits of B12 Injections for Optimal Health Understanding the B12 Vitamin Shot:

[DOI] [PubMed] [Google Scholar] 12.Kraus D, Yang Q, Kong D, Banks AS, Zhang L, Rodgers JT, Pirinen E, Pulinilkunnil TC, Gong F, Wang YC, Cen Y, Sauve AA, Asara JM, Peroni OD, Monia BP, Bhanot S, Alhonen L, Puigserver P, Kahn BB

It did not produce the magnitude of weight loss we now consider transformative, which is why it never became a mainstream drug

The effects of our Vitamin B12 injections can be categorized into immediate, short-term, and long-term effects

Daily use helps create an optimal environment for hair growth by reducing inflammation, supporting cellular repair, and strengthening the scalp barrier

Massaging the injection site may force the medication from the muscle into the skin layers, reducing the absorption of the drug

For vitamin B deficiency (e.g., pernicious anemia), a common regimen is to begin with frequent intramuscular injections to replenish body stores