Subdermal Radiofrequency for Skin Tightening of the Posterior Upper Arms.

Background: Subsurface thermistor-controlled monopolar radiofrequency (SMRF) is an emerging technology designed to offer a minimally invasive option for tightening of lax skin. The versatility of this technique allows it to be applied to virtually any body site.

Objective: The purpose of this study is to evaluate the safety and efficacy of SMRF for tightening of posterior upper arm skin laxity.