b12 injection needle and syringe The Advantages of Injections Versus Oral Supplements: Shawn Veiseh, M.D.: Family Medicine B12 INJECTION - Elite IV

Lyophilized (unreconstituted): Stable at room temperature for several weeks

That's a substantial reduction in a direct marker of cell death, measured in the same follicle culture system that showed proliferation and elongation effects

However, for those with more severe deficiencies, it might take a bit longer or require a series of injections to fully replenish their stores and experience the full benefits

"Effects of vitamin B12, on cell proliferation and cellular alkaline phosphatase activity in human bone marrow stromal osteoprogenitor cells and UMR106 osteoblastic cells"

Drinking plenty of water before and after your injection is recommended