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Why dosage varies by person Your B12 dosage and injection frequency should reflect your individual needs
For background on how to interpret peptide research literature, see our peptide glossary, which defines terms such as EC50, receptor affinity, and bioavailability
For example, vitamin B12 injections may lead to skin changes, such as acne and dermatitis (rash)
Sterile water without bacteriostatic preservative reduces the reconstituted peptides usable lifespan to 35 days instead of 28 days
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