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Archived (PDF) from the original on 15 October 2019
Unlike oral supplements or topical products that can be less effective due to poor absorption, vitamin injections bypass the digestive system entirely
Want to know how B12 injections can actually work for you
The vitamin, which may also be produced in the laboratory, is usually injected into the muscle of the thigh, upper arm or hip when necessary
If you're adequate but on the lower end of normal, optimizing your levels may produce a subtle, gradual benefit
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