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A note on the research itself: the mechanisms the brand describes - NAD+'s role in cellular energy production, growth hormone's role in tissue repair, and B-vitamin methylation pathways - are active areas of general biomedical research

Rare Complications and Contraindications Even though its rare, serious problems can happen with Vitamin B12 shots

Beyond hematological functions, B12 plays a key role in neurological health, supporting nerve cell function and the proper operation of the nervous system

When it comes to hair loss, a lack of B12 could lead to: Hair shedding Thinning hair Weak, brittle hair that breaks easily Dull hair Changes to hair texture If a B12 deficiency is causing your hair loss, youll likely experience some other symptoms too, including fatigue and weakness, shortness of breath, headaches and palpitations