can you inject your own b12 Vitamin Injection Sites: All Need to Know Ivy Grove Surgery : Self-administration
Description
They can assess your individual needs and recommend the most appropriate treatment plan

Once a vial has been punctured and is in use, it is generally recommended to discard any leftover solution after ~28 days for sterility reasons (even if within the chemical BUD)

Despite a healthy diet, many people often need supplementary vitamin B12, which becomes more challenging to absorb with age

"Vitamin B-12 and homocysteine status in a folate-replete population: results from the Canadian Health Measures Survey"
