Introduction and overview of radiofrequency treatments in aesthetic dermatology.

In this introductory article to this special supplement in radiofrequency (RF), we aim to summarize the scientific foundation of RF therapy and its role in aesthetic dermatology. Monopolar, bipolar, and multipolar RF systems are described in detail, along with the different delivery methods such as stamping, dynamic or continuous movement, fractional, fractionated (FR) needling, and non-contact devices as well as the minimally invasive platforms that use subdermal probes. The characteristics of different tissues and the technical parameters that influence the effect of RF therapy, such as the penetration of energy, are summarized. This article expands on the various treatment applications for these devices and the mechanism of action behind skin and adipose tissue remodeling, and also discussed are safety concerns, treatment endpoints, and specific considerations when using RF therapy to provide effective treatment outcomes with reduced patient downtime.