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An opened vial is good for 28 days from the first puncture
Vitamin B12 is generally safe for most people
Excessive methyl supplementation taking too much methylfolate or methyl-B12 for your needs COMT mutations slow breakdown of neurotransmitters, causing buildup when you add more methyls Histamine issues methylation can increase histamine in some people
Other common side effects of B12 injections include: Diarrhea Headache Swelling (and not only at the site of the injection) If you experience any uncommon side effects, such as chest pain or hives, contact your health care provider immediately
Prescriptions are provided only after a licensed provider consultation and are filled by independent compounding pharmacies
A key study showed that this intervention improved insulin sensitivity in mice, suggesting it helps restore metabolic flexibility
