Which will give best result on Crepey thighs
I don't believe Ultherapy or Thermage will give you the results you are looking for in the thigh area. My preferred non-surgical options for a patient with similar findings as your picture would include a combination of ThermiTight and ThermiSmooth. It's important to have realistic expectations on what non-surgical treatments can accomplish when compared to surgery. Make sure you see an experienced physician provider for an in-person consultation and evaluation to determine which treatments would be best for you. Best wishes.