Trends in Endocrinology and Metabolism (2017) 8
have chosen to use Methylcobalamin for its active absorption status which means it can be absorbed directly into the blood stream via the mouth area of the cheek and under the tongue and via the small intestine
Some children show quick changes, while others may need several weeks or months
Supplier and product pages should be evaluated for third-party testing, batch-specific certificates of analysis, named laboratory verification, transparent pricing, realistic delivery expectations, payment security, refund policies, support quality, and consistent research-use-only labeling
for longer storage, aliquot and freeze at -20 C or below
If you are pregnant and have B12 deficiency, discuss with your doctor or midwife whether you will be able to use gas and air during labour