There is a question as to the effect Ultherapy may have if performed immediately over and through the area filled. Can the energy alter the molecular structure of the product or can it hasten the disappearance of the filler?
This is why a cosmetic consultation is so important before embarking on having a treatment with any laser or injection of Botox or Filler. If there were filler in the lips or smile creases and the Ultherapy is not intended to treat those areas on that patient, then there would not be an issue, but if there had been panfacial augmentation with fillers in the cheeks, then Ultherapy might be postponed for six months or more, to protect the patient's investment of cost in those fillers. There may be studies that are ongoing and the results might prove there not to be any negative effect of Ultherapy on fillers, but until that time, I suggest to my patients who are now interested in having Ultherapy to wait six months after fillers if they had fillers in the cheeks.
There may be more of an issue with the new 1.5mm superficial transducer affecting fillers in the smile folds or lips and even cheeks, as this is closer to the depth of fillers than the 3mm or 4.5mm deep transducers. The deeper transducers might allow the ultrasound to pass through the fillers without heating the products as the energy is absorbed below their level and the heat generated may be confined to that plane without affecting the fillers. More investigation needs to be done to answer this question.