Refit by Viora for Jawline and Jowls?

Thank you for your question. 
This is a kind of radio frequency application. These have a very limited range of effect on your face.  I wish you provide a picture and this would give me more chance to give you a more specific answer. 
Normally, more fullness in your midface and  higher position of jowls would create very beautiful shape to your face, and this will also help it get rid of marionette lines (the lines around  and down of the corner of mouth ). My own experience  says  that non-invasive  procedures are not too effective in correcting sagging  jowls and gaining volume in front, which makes the face look youthful;  the real results can be obtained just  by combining two methods -surgical lifting of the sagging facial tissues  (SMAS Lift)  and  shaping the midface zone ( cheek augmentation with stem cell riched fat grafts). This observation is true regardless of age. 
I hope this helps you well.

For a more defined jawline to strengthen your profile (and help prevent the dreaded jawline "jowl" sagging), we use injectable fillers like Revanesse Versa - a filler known to limit swelling and give subtle, soft enhancements - or Radiesse. Using a cannula to limit pain and swelling, we inject on the bone in strategic points to get more lift and shaping, resulting in a more contoured lower face and defined, structured jawline. I would suggest getting a formal evaluation with a facial sculpting expert. Best, Dr. Emer

The Viora Refit treatment is the best tightening technology for this area of the face to achieve exceptional, visible improvement and a accentuated jawline. Viora is the leading RF contouring and skin tightening device, using CORE technology (three different frequency modes) stimulates the dermis' underlying network of collagen and elastin fibers. This action causes the fibers to shrink for immediate smoothing and tightening results. A series of 6 treatments is recommended with maintenance treatments every 3 to months. There is no down time  with this procedure and takes about an hour to do.