This webinar provides a comprehensive overview of UV filters, covering the fundamentals of photoprotection, global regulatory frameworks for sunscreens, differences between UVA and UVB exposure, and key challenges related to photostability and safety. It also explores the role of UVA filters in preventing photoaging and skin cancer, methods for assessing sunscreen performance from SPF to broad-spectrum protection, and the main principles of formulating effective and compliant sunscreen products.