Which treatment would work better for wrinkles and skin tightening - Thermage or Skinfinity?

This will ultimately depend on the skin laxity and requires an in-person evaluation to answer. You appear to be a candidate for a tummy tuck and when combined with liposuction, which can be performed at the same time, will give you great results. I use VASER HI DEF with ThermiRF and fat ...

I recommend following up with your Dr. for an evaluation. There can be some swelling with Thermage, but it resolves very quickly and is considered a no downtime procedure. For best results, I often recommend Thermage in combination to ultherapy, venus legacy.  Add Sculptra to maintain your res...