Thermage 0.25cm2 ST Eye Tip 450 REP is a disposable membrane tip that works with the Thermage CPT system. Thermage CPT is a monopolar tissue-tightening device that generates radiofrequency energy to heat the skin at a treatment area. Thermage 0.25cm2 ST Eye Tip 450 REP is used to deliver this energy into skin at the periorbital area (the area around the eyelid) to tighten skin. The Thermage CPT system also has a unique cryogen unit that helps to cool the epidermis as multiple passes are delivered.