What is the hardest/most firm filler on the market?

Radiesse is actually an excellent filler for cheekbones but it should be properly injected, on the bone. When injected on the bone it will act like bone creating natural results. you need to make sure that the injection is done properly and in the amount that is correct for the results you wish to achieve. your other and possibly the best option is using your own fat which will provide you with natural and permanent results as long as it is done been experienced plastic surgeon. I hope this helps and good luck from New York City

Radeisse is same as bone chemicals - hydroxyapapitate crystals... You were under treated .... only 1 syringe is never close to enough.