vitamin b12 injection onset of action Cobalamin (vitamin B12) and Folate Deficiency How Fast Does a Vitamin
Description
By directly injecting into the target area, it reduces fat thickness

It is found naturally in animal-based foods and has a complex absorption pathway involving intrinsic factor and the terminal ileum

& Chen, H.-C

So if a clinic frames the combo as guaranteed faster fat loss, thats marketing, not evidence

A.ChowdhuryS.MehediI