vitamin b12 injection sites C and Techniques B12 Injection sites + How

The body uses methyl B12 as a co-factor to convert homocysteine back into methionine

Negative effects are rare but may include: Mild discomfort at the injection site, temporary diarrhea, allergic reactions, or rash

Learn more about the benefits of choosing to get B12 shots below

Each 1 mL vial contains 1000mcg of cyanocobalamin, a synthetic form of vitamin B12. It is a multiple-dose vial, meaning that it can be used for more than one injection

References Heffernan M, Summers RJ, Thorburn A, Ogru E, Gianello R, Jiang WJ, Ng FM

A: The effects can last 24 weeks, depending on your baseline B12 levels and lifestyle factors