During November 17th – 18th, 2022, Lect. Dr.Weerawon Thangboonjit from the Department of Pharmacology, Faculty of Medicine Siriraj Hospital, Mahidol University, attended and delivered a poster presentation on the topic “Protective Effects of Quercetin-loaded PLGA Nanoparticles Against UVA-Induced Photoaging in Mouse Skin” at the international conference “Skin Ageing & Challenges 2022” in Lisbon, Portugal.