Expert consensus on the clinical application of aminolevulinic acid-based photodynamic therapy for acne vulgaris (2022)#

Aminolevulinic acid-based photodynamic therapy (ALA⁃PDT) is a safe and effective physical therapy for acne vulgaris that is widely used in clinical practice. To further standardize the clinical application of ALA⁃PDT in the treatment of acne, we created this updated consensus based on the 2011 version of the consensus on ALA⁃PDT for the treatment of acne vulgaris. In this document, we summarize the mechanisms of action of ALA-PDT and provide practical standards for patient selection, treatment parameters, administration procedures, and management of adverse reactions. Our aim was to provide guidance and treatment regimens for using ALA-PDT for acne vulgaris in clinical practice.