is b12 injection intramuscular

The focus on b12 specifically appears to be marketing rather than science Multiple Dose Vial https://www.youngsurgicalsolutions.com/_next/image?url=https%3A%2F%2Fshop.youngsurgicalsolutions.com%2Fmedia%2Fcatalog%2Fproduct%2Fc%2Fy%2Fcyan100010-10v.jpg&w=3840&q=75 Size:1000 mcg/ml - 30 ml x 5 TROY Vitamin B12 Injection 100mL

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