how to give an injection of b12 Shots at Home: How, Where & Often Inject Yourself Best Vitamin B12 Injection Sites

Even though some people may be tempted to reuse needles for cost reasons, reusing syringes carries infection risks

17 In the future, the practitioner may be able to estimate total endothelial destruction as a marker for effective sclerosis by counting circulating endothelial cells

Other signs may include shortness of breath, pale skin, stomach problems, such as constipation, diarrhea or gas, or nerve problems, like muscle weakness or tingling in fingers or toes. Over time, a deficiency of B12 can cause problems with balance, confusion, depression, poor memory and possibly dementia, and it can even cause permanent damage to the nervous system, Somers says

It has also been shown to support neurological function, nerve cell health, healthy cognitive and nerve function, memory, and emotional well-being