Textbook in PDF format This book offers a comprehensive overview of recent developments in inorganic ultraviolet (UV) filters utilized for photoprotection applications. It evaluates the performance of the two approved inorganic UV filters for sunscreen use, titanium dioxide (TiO2) and zinc oxide (ZnO), examining their physicochemical properties in relation to various factors such as efficacy in UVR attenuation, formulation considerations including product aesthetics and stability, safety aspects, potential risks to human health, and their environmental fate and effects. The regulations governing the use of TiO2 and ZnO in sunscreens are also addressed