Is It Safe to Do Thermage, Exilis, or Ultherapy Over Fillers?
Skin tightening treatments like Thermage, Exilis and Ultherapy use radiofrequency energy. In general, these radiofrequency- based technologies are safe when done over hyaluronic acid fillers like Juvederm, Restylane and Voluma.
Over Sculptra, you should wait 6 months to be extra safe (both build collagen). Over Radiesse, there’s no data, but I recommend waiting 1 year to be safe. I recommend against doing these radiofrequency treatments over silicone and Artefill/Artecoll, which are both permanent fillers.