Introduction

Abstract

We are pleased to present the most recent Advances in Aesthetic Scales Issue of Dermatologic Surgery, which follows several other Dermatologic Surgery special issues on new aesthetic scales. Scales are an important part of the scientific method of proving efficacy of drugs and devices in the cosmetic marketplace. The US FDA requires scientifically validated scales to be used as measurement tools to specify enrollment criteria for FDA approval studies on cosmetic interventions with drugs and devices, and to measure the outcomes of such studies, usually as rated by blinded expert evaluators, treating investigators and study subjects. Many other countries now follow FDA guidelines for drug and device approval. As such, this issue presents new scales on the Asian chin, forehead, and calves. Cosmetic ideals may differ from country to country, and scales must account for regional and cultural aesthetic preferences. For the non-Asian cosmetic dermatologist, these scales may highlight fascinating regional and cultural differences in cosmetic preferences. Also, in this issue are new scales on skin laxity or dimpling of the thighs, buttocks, and knees, which are necessary to study the outcomes of many of our newer devices that address cosmetic concerns off the face. We wish to acknowledge the scientific leadership and commitment of the authors and Merz for undertaking this important scholarly initiative to elevate the level of science in cosmetic dermatology and equip us to generate further robust clinical evidence in our field.