In post-marketing experience, angioedema and angioedema-like reactions were reported with parenteral methylcobalamin
B12 supports normal energy metabolism and red blood cell production, so correcting a genuine deficiency can help you feel and perform like yourself again, but shots are not a proven performance enhancer for people who are not deficient
What can go wrong Pain, swelling and a small lump The most common outcome of a rushed or badly angled injection is local irritation: soreness, redness, a small firm lump or a bruise
First 2 weeks: Energy levels get better for many during this time
Thats because vitamin B12 is bound to protein and can only be released by digestive substances in the stomach (hydrochloric acid and gastric protease) to be absorbed
Arrived in timely manner, very clean with everything needed including alcohol swabs