Hello. I am considering doing a procedure that involves a tummy tuck revision, liposuction and renuvion/j-plasma for skin tightening. I am a 31 year old male, with a decent amount of muscle mass, and moderate levels of body fat. I have skin that has lost elasticity and is stretchy and saggy (but not paper-thin) because of my 100 lb weight loss. Some reputable surgeons have told me that j-plasma/renuvion does not work, and many do not offer the procedure. Why? Does it work? Need guidance please.