b12 injections sq or im vitamin Store A Retired RN About Vitamin B12 B12 vitamin Store Intramuscular vs
Description
Minimum effective cycles run 8-12 weeks for most compounds

Not a peptide sequence but a small molecule NNMT inhibitor
[DOI] [PMC free article] [PubMed] [Google Scholar] 45.Stromsdorfer KL, Yamaguchi S, Yoon MJ, Moseley AC, Franczyk MP, Kelly SC, Qi N, Imai S, Yoshino J

If you suspect a vial has been compromised, it is safer to discard it than risk weeks of ineffective therapy