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Use needles of shorter length (4 mm or the shortest available) and smaller diameter (highest gauge number), and the tip with the lowest penetration force to minimize pain
It is essential for nerve and cognitive functions
It is not a medicine, supplement, cosmetic ingredient or veterinary product, and it is not for human or animal consumption
[1] [2] Factors That Affect How Fast B12 Injections Work Multiple variables influence how quickly you will respond to B12 injection therapy, making it difficult to predict an exact timeline for any individual patient
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