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Before beginning any routine, its best to do comprehensive bloodwork to check your current B12 levels and identify any underlying deficiencies
How to use and dosage
After reviewing 21 clinical trials, researchers concluded that vitamin B supplements may delay cognitive impairment associated with aging
Laboratory Monitoring Guidelines Regular lab tests are key to checking if B12 injections are working
B12 plays a key role in several processes like producing red blood cells, converting food into energy, and producing nerves
It suggests to me that you were given it when you didn't need it and if this is the case I'm not surprised at your skin's reaction
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