How to Administer a B12 injection to Yourself There are two ways to self-inject vitamin B12: Subcutaneously, or just below the skin, and intramuscularly, which goes directly into the muscle, says Foxx
Treating a B12 deficiency may boost energy and mood, reduce stress and fatigue, and decrease symptoms of multiple conditions
How Fast Does Vitamin B12 Work How fast Vitamin B12 works depends on the delivery method and the severity of your deficiency
B12 Shots Vitamin B12 is a water-soluble B vitamin found in some foods
B12 injections are a direct and efficient way to restore optimal levels, especially when supplements or diet changes havent made a difference
Because B12 levels arent checked during routine blood work, a deficiency can go undetected for years, Dr