b12 injection intramuscular or subcutaneous vitamin Vitamin B12 shots: Uses, benefits, and side effects A Guide to the Best

Always use methylcobalamin, not cyanocobalamin, as methylcobalamin is pre-activated and immediately available for your body to use, especially important if you have MTHFR genetic variations or methylation issues

Here are the best vitamin B12 injection sites for each method: Subcutaneous B12 injection sites Usually, the best places to give yourself a B12 shot subcutaneously are the abdomen, thigh, and upper arm, as you can see in this illustration: Although not shown above, the buttock is another good site for B12 shots

Why Site Rotation Matters For long-term injection success, site rotation is critical

Severe reactions are rare but can occur