Background: Skin aging consists of photoaging and intrinsic aging. It is characterized clinically not only by rhytides, but also by pigmentary alterations and facial telangiectasias. There continues to be a growing interest in the efficacy of intense pulsed light (IPL) devices in the treatment of skin aging, as well as further defining its mechanism of action.

Objectives: The objective of this clinical trial was to evaluate the effects and the mechanism of action of an IPL by comparing clinical photographs and biopsy results before and after treatment.

Methods: A total of 58 patients were treated using a new IPL device. Clinical photographs were taken before treatment and compared to ...