Ultherapy for treating stretch marks is considered off label and experimental. From my experience Ultherapy would not be affective for this purpose. Though visible on the surface, a stretch mark is a fracture of tissues in the underlying dermis. The overlying epidermis is tented over this area which leads to a translucent appearance of this skin. Since the space underneath is essentially "empty", Ultherapy probably won't have an effect.I would be surprised if science ever showed this to help, but I'd have to say I would be happily surprised! It would give me something to offer the hundreds of patients in my practice who want a good treatment for stretch marks. Best of luck,Dr. B