There are two forms of B12 used in injections: methylcobalamin and cyanocobalamin
Some feel them more prominently after the first dose, while for others, it takes a few injections before the detoxification and adaptation processes truly kick in
For example, the YouTuber below lost 30lbs in 60 days on lipotropic injections (though these results are exceptional): This Instagram user also experienced visible weight loss and a waist reduction in her before and after pictures: Reduced Bloating Improved liver function and detoxification help reduce water retention, resulting in a flatter stomach and less puffiness in the face and extremities
doi: 10.5435/JAAOSGlobal-D-25- 6: Mayfield CK, Bolia IK, Feingold CL, Lin EH, Liu JN, Rick Hatch GF, Gamradt SC, Weber AE
Research in this area is ongoing, but the implications for extending healthspan and improving quality of life in later years are considerable