can you inject b12 with an insulin needle Injections at Home - Safety Guide for Self-Administration Dr. prescribed B12 injections. Pharmacy

Some clinical studies have reported noticeable improvements in hair density after six to twelve months

Also, injections are not typically recommended for people without a vitamin B12 deficiency

[1] Because intrinsic-factor-dependent uptake in the distal ileum can be absent in conditions such as autoimmune gastritis, pancreatic insufficiency, or bariatric surgery, the intramuscular or subcutaneous route bypasses gastrointestinal barriers and reliably restores serum concentrations

Injectable administration bypasses your digestive system entirely, so the compounds reach effective levels faster than oral supplements

Many breakfast cereals, soy products, and yeasts are fortified with B12