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Vitamin B12 injections typically contain synthetic Vitamin B12 a man-made version called cyanocobalamin and can quickly boost the levels of B12 in a persons system as needed

At the time, the FDA cited safety concerns and a lack of evidence supporting their efficacy

How is Vitamin B12 deficiency anemia diagnosed
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It also independently stimulates growth factors through the wound-healing response
Always keep the vials protected from light
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