Thermage is supposed to shrink fat, tighten the support structures, and produce tightening and a more youthful appearance.

The cons to this are that there is some dependence on the operators skill. Burning has resulted, permanent hard spots (deep), discoloration, sensation changes. The most difficult to correct are irregularities in the contour. In other words, some areas may be sunken in while other areas may be high.

In short, the results may not always be predictable, and complications may not always be remediable.