vitamin b12 injection how to administer Dosage How to Self-Inject Vitamin B12

Warnings Patients who have early Leber's disease (LHON) a hereditary disease that causes optic nerve atrophy have been found to suffer severe and swift optic atrophy when treated with vitamin B12

Improves Skin, Hair, and Nail Health Vitamin B12 plays a role in the formation of new cells, including those that contribute to healthy skin, hair, and nails

Even when platelet counts appear adequate , functional quality measures show impairment

Strict vegans and vegetarians are also at higher risk for deficiency since B12 occurs naturally only in animal-derived foods

It also helps in the absorption of iron and expansion of blood vessels