here is an outlines about mesotherapy
originally mesotherapy was invented by French physician Dr. Michel Pistor in 1952. it is a minimally invasive procedure , it was used to treat vascular disease , sport injures , and rheumatism
but sooner the physicians start to use it in cosmetic therapy to treat many case such as : Antiageing ,cellulite, hair loss ,and wight loss .
multiple injections of pharmaceutical and homeopathic medications, plant extracts, vitamins, and other ingredients into mesoderm layer of the skin .. the mehanism of action not fully understood
However physicians have expressed concern over the efficacy of mesotherapy, arguing that the treatment hasn't been studied enough to make a determination. The primary issue is that mesotherapy for the treatment of cosmetic conditions hasn't been the subject of gold standard clinical trials; however the procedure has been studied for the pain relief of other ailments
here is some studies about mesotherapy .. they all agree on one point .. Further studies should be performed to clarify and determine the mechanisms of action.
sources :wikipedia ,pubmed , mesotherapy