title: In vitro testing of zinc oxide sunscreens.
abstract: The UVA performances of two all-mineral zinc oxide sunscreens are measured following Colipa and ISO procedures and compared to a sunscreen containing only organic actives. It is found that the two sunscreen types yield very different in vitro SPF and UVA results. It shown that the results can be rationalized in terms of the differences in the monochromatic extinction spectra of the two types of sunscreens.
authors.affiliation: Faculty of Engineering, Computing and Mathematics, University of Western Australia, Crawley, WA, Australia. paulm@mech.uwa.edu.au
authors.forename: P G
authors.initials: PG
authors.lastname: McCormick
authors.forename: T
authors.initials: T
authors.lastname: Tsuzuki
mesh_terms: D019904:Polymethyl Methacrylate / Q000737:chemistry / Q000494:pharmacology; D013056:Spectrophotometry, Ultraviolet; D013473:Sunscreening Agents / Q000737:chemistry* / Q000494:pharmacology*; D014466:Ultraviolet Rays; D015034:Zinc Oxide / Q000737:chemistry* / Q000494:pharmacology*
chemical_list: D013473:Sunscreening Agents; D019904:Polymethyl Methacrylate; D015034:Zinc Oxide