vitamin b12 injections for weight loss side effects shots loss: Do they work, risks, benefits, and more Can B12 Shots Help With

Soffer says

This compound is utilized in controlled scientific settings for the study of molecular chemistry, structure-function relationships, and biochemical characteristics under experimental conditions

Improper storage could lead to vitamin degradation (losing potency) or increased risk of injection site reactions (if contaminants or precipitates form), so patients and providers should take the storage guidelines seriously

Since vitamin B12 is a water-soluble vitamin, any extra will be excreted in the urine

Experiencing increase in energy but no weight loss yet You guys are great but this seems to sting for a while at injection site for a half hour or so and not sure if that is common