According to the NIH Office of Dietary Supplements, vitamin B12 is available as cyanocobalamin and hydroxocobalamin, which are typically administered parenterally by intramuscular injection to bypass gastrointestinal absorption barriers
Since your own plasma is used in injections, the risk of side effects is exceptionally low
Primary Ingredients and Their Benefits: Hydration Fluids : Replenish lost fluids and electrolytes, restoring balance and nourishing your cells to combat dehydration, one of the main contributors to hangover symptoms
References: Zhang R, Zhang Q, Zou Z, et al
Yes, this is a common approach with weight loss programs, especially during the early stages
But B12 injections typically provide noticeable improvements within days, making them ideal for anyone needing rapid support