what size syringe is best for b12 injections at Home - Safety Guide Self-Administration syringe size for b12 injection
Description
Cyanocobalamin is distributed into breast milk in amounts similar to those in maternal plasma, and distribution in breast milk allows for adequate intakes of cyanocobalamin by breast-feeding infants

What does cyanocobalamin injection do

B12 is essential for multiple biological processes

Increase of fat oxidation and weight loss in obese mice by a fragment of human growth hormone

A recent meta-analysis of 12 observational studies found that higher dietary intake of vitamin B 12 was associated with a 23% lower risk of depression compared to lower intakes, but stratifying the data revealed a significant protective association in females, not in males (99)
For adults, its about 2.4 micrograms of B12 daily
