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how do you administer b12 injections to self-inject intramuscular vitamin - Overview Safe B12 Injection Guide at
Description
It's the form we use in our copper peptide serum here at PLU Laboratories

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Triny rarely recommends this one

The intranasal forms of methylcobalamin, vitamin B12, should be administered at least 1 hour before or 1 hour after ingestion of hot food or liquids