Thermage is a treatment for skin tightening that works by tightening the collagen in the skin. It is important to discuss with your doctor whether it is appropriate for you, and what outcome you can expect. Because it tightens collagen, the more collagen you have the better results you will get. Increasing age, sun damage, and smoking are factors that decrease collagen and will therefore decrease how significant your results will be. It is very important to discuss your expectations and to fully understand what results you will see. As with any treatment, you should ask what the treatment will feel like, what you will look like afterwards, and what the aftercare will be.