Red-Light Photodynamic Therapy with 10% Aminolevulinic Acid (ALA) Following Microneedling in the Treatment of Facial Actinic Keratosis: Cosmetic and Clinical Outcomes.

Our results indicate that red light PDT using microneedling-assisted delivery of 10% ALA gel and a short 30-minute incubation is a safe and tolerable procedure producing good cosmetic outcomes in several skin quality parameters, such as texture and skin tone evenness, as well as an AK lesion clearance rate of 89.2 percent at Week 8, relatively low pain scores, and a reduced PDT treatment time.