What procedure is best for loose skin on the stomach, inner thighs, and upper arms?

I have found Profhilo, a very special hyaluronic acid skin booster (unfortunately not yet available in the U.S.) to be an excellent, simple, and relatively inexpensive method for treating skin laxity in the face, neck, chest, abdomen, arms and thighs. The flow characteristics of this particular, highly concentrated hyaluronic acid agent allow for it to disperse itself throughout the lax tissues and promote neocollagenesis, neoelastogenesis and matrix formation that firm up the treated tissues. Usually two treatments spaced at a one month intervals, followed by a third two months later are required to achieve optimal results for arms, legs, although many patients in my personal experience are quite satisfied following two treatments, particularly for the face, neck, chest following the first two initial treatments. In my NY practice, I have also achieved gratifying results using skinbooster-like injectable agents, such as Restylane Silk. in a similar protocol to that used for Profhilo. You may encounter a heavy amount of marketing for the benefits of radiofrequency machines and fraxel lasers, but these relatively expensive bells and whistles are generally far more supported by device manufacturer backed marketing hype than hard science. Make sure that you consult with a board certified aesthetic physician. Best of luck.

Morpheus 8 is a non-invasive skin and soft tissue tightening treatment that is consistently amazing in our patients. We use the Morpheus to exact fractional induced RF into the skin or tissue in order to tighten collagen and stimulate contraction of the tissue. For acne scars, it is quite useful to build collagen in patients who have atrophic scars but is not very productive for ice-pick scars which require TCA Cross. For tissue tightening, Morpheus is ideal for the face and neck and we often combine it with CO2 laser or Ultherapy to further enhance results. Chemical peels and skin resurfacing should be done at least 5 to 7 days after, but can be performed earlier, depending on treatment severity. Avoid exfoliating skin treatments before Morpheus and expect a period of 2-4 weeks for skin contraction to set in.

Best,
Dr. Karamanoukian
Realself100 Surgeon

While it is difficult to make a recommendation without seeing the extent of your skin laxity, it is very likely a nonsurgical skin tightening treatment could be a good choice for you. I offer ThermiTight, which is a device that delivers radiofrequency energy into the underlying dermal structure via small probes. The RF energy heats the tissue to constrict it and tighten skin from the inside out. At the same time, the treatment boosts collagen production to provide support to the dermal structure while firming and smoothing the outer dermis. 
ThermiTight is a nonsurgical procedure with minimal downtime afterward. It can be safely used on nearly any area of the body and results can be long lasting. I recommend working with a board-certified dermatologist who has the expertise and qualifications to ensure your procedure is both safe and successful.