Which is more effective for jowls, Thermigen Vs Ultherapy?

While Thermigen most likely does something for the upper layers of the skin (as long as energies are reasonable), it doesn't go down deep enough to get the results that Ultherapy can achieve.  When it comes to non-invasive devices, Ultherapy has the combination of precise treatment and deep results, which are a winning duo.  

There are many other treatment regimens out there, but none that I have ever seen that deliver tightening that is impressive enough to be seen on pictures.  Hope that helps!

I use the Ultherapy system in my Los Angeles office and have found it an outstanding treatment for the lower face and jowl areas. Raffy Karamanoukian, Los Angeles

Ultherapy is a deep focused ultrasound that does not require any use of needles. Thermigen is a radiofrequency energy that is delivered via a cannula through the skin after local anesthetic is injected into the area to be treated. Although there is no suction of fat, the technique of infiltration and then passing a cannula back and forth is similar to liposuction. Swelling and brusing might occur to a greater extent than Ultherapy, but I am not aware of any comparison studies between the two technologies.

Thermigen is relatively new and I have not been exposed directly to this device so I can not comment from personal experience. I am awaiting trusted colleagues of mine who may  have it to inform me of their results once enough months pass to see results and understand better the side effects.

There have been no head-to-head studies published comparing Ulthera and Thermigen, in fact I have not been able to find any peer-reviewed studies on Thermigen at all. Ultherapy uses microfocused ultrasound for precise heating at 3 different layers under the skin, while Thermigen is radiofrequency (RF), which is unfocused. Thermage is another version of RF that has been around for many years and there are several other RF devices on the market. All of them heat the skin to stimulate collagen remodeling. Ulthera is the only FDA-approved technology for noninvasive skin lifting of the face.

I have used Ultherapy for the jowls and face/neck since 2011 and find it very effective for skin tightening in these areas with little or no down time and high effectiveness in appropriately chosen patients.