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Importantly, B12 deficiency can occur without anaemia, and some patients may present with neurological symptoms despite having normal haemoglobin levels
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The product is sold strictly for laboratory scientific research (RUO)
Doses above ~500 mcg/day are not generally linked to added benefit in the reference literature, and none of this reflects proven human efficacy
Too much spray at once can cause the peptide to drain away Tilt Your Head Back : A slight head tilt helps the spray reach the upper nasal cavity
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