Reduce your exposure to toxins wherever you can
Minimizing Methylmalonic Acid Levels A potential problem with the IOMs method for determining B12 requirements (see Institute of Medicines Recommendations above), is that a small percentage of people with neurological symptoms of B12 deficiency have normal blood parameters, including 13% of patients in one series of case studies (Lindenbaum, 1988)
Other Ingredients: Distilled Water, Sunflower Oil, Sunflower Lecithin, Natural Flavor, Steviol Glycosides, Polysorbate 80, Potassium Sorbate (to preserve freshness), Sodium Benzoate (to preserve freshness)
Clean the tops of both vials with an alcohol swab
doi:10.1111/j.1749-6632.2010.05479.x