Safety and Efficacy of Aminolevulinic Acid 10% Topical Gel versus Aminolevulinic Acid 20% Topical Solution Followed by Blue-light Photodynamic Therapy for the Treatment of Actinic Keratosis on the Face and Scalp: A Randomized, Double-blind Study March 1, 2019 J Clin Aesthet Dermatol. 2019;12(3):32–38 by Mark S. Nestor, MD, PhD; Brian CONTINUE READING »