b12 sc injection Cyanocobalamin (B12) / Products / American Regent Vitamin B12 Injection – Prescription
Description
Packaged in a sterile, sealed vial, AOD-9604 is designed to maintain maximum stability, consistency, and integrity during research applications

Likewise, a further study suggested that NNMT enhances chemoresistance to 5-FU (5-fluorouracil) in colorectal cancer cells

(2003) Insulin resistance in the liver-specific IGF-1 gene-deleted mouse is abrogated by deletion of the acid-labile subunit of the IGF-binding protein-3 complex: relative roles of growth hormone and IGF-1 in insulin resistance

A few reasons: Energy support
Other than that, this is a great company

The large amount doesn't pose a danger because people with pernicious anemia absorb only a small fraction of it
