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Improper dosing or unsupervised use may disrupt natural hormone balance or cause unwanted side effects
While some effects might be felt more quickly, the full benefits of B12 injections usually unfold over several days to weeks
It's generally less painful and easier to administer consistently
Whether you're curious about B12 due to a recent diagnosis or simply want to learn, "How much vitamin B12 should I take?" we've compiled this guide with all body types and life circumstances in mind
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