What really works to get rid of thunder thighs?

My friend recently took me to a 'Beauty Clinic' for treatment of a cold sore that popped out by the side of my lip. This 'Beauty Clinic' seems to provide a whole lot of services from consultation with dermatologists, to normal facials, to IPLs to injections with Vitamin C to dissolve body fats. I was a bit surprised with the Vitamin C injections, but my friend who has tried it swears that she no longer has thunder thighs. I don't know about 'injections'.... scardy-cat like me would probably just get a bottle of adapexin-p fat burner pills and try my luck.