Injecting Radiesse Under the Muscle for Tear Troughs

I had Restylane injected in the tear troughs, under the muscle, but it did not last long (3 months). I am guessing it was because it was under the muscle rather than in the skin. Obviously, it would not be a good idea to inject Radiesse in the tear trough, but I am wondering if it is injected under the muscle also, would that "allow" enough to minimize any visual lumping? At least I would not have to do it so often as Radiesse lasts longer.