I use 1 ml little vials to inject b-12 because I'm not making enough to suit my body
A decrease in vitamin B12 and/or folate results in an increase in homocysteine level
After that has been done fill up a TB syringe with the recommended dose of air before inserting it into a rubber stopper on top of the vial containing vitamins make sure not to fill too much air as you will want extra room left in the syringe for any air bubbles that may need release later on when priming needle prior to injection site cleaning
The tier package below is ordered as a 2+ month supply (up to 9 weeks)
The remaining 1030% is bound to transcobalamin (TC), a complex referred to as holotranscobalamin (holoTC)
Inadequate secretion of intrinsic factor, resulting from lesions that destroy the gastric mucosa (ingestion of corrosives, extensive neoplasia), and a number of conditions associated with a variable degree of gastric atrophy (such as multiple sclerosis, certain endocrine disorders, iron deficiency, and subtotal gastrectomy)