title: Testing the efficacy of sunscreens: effect of choice of source and spectral power distribution of ultraviolet radiation, and choice of endpoint.
abstract: The problems inherent in testing the protective efficacy of sunscreens are reviewed. Of primary importance are: the spectral power distribution of the test light source, which should simulate the ultraviolet radiation of midlatitude, midsummer sunlight; definition of minimal erythema of skin, and equilibration of light source and filters prior to testing.
authors.affiliation: Center for Photobiology, Skin and Cancer Hospital, Temple University School of Medicine, Philadelphia, Pennsylvania.
authors.forename: F
authors.initials: F
authors.lastname: Urbach
mesh_terms: D000287:Administration, Topical; D004305:Dose-Response Relationship, Drug; D006801:Humans; D010787:Photosensitivity Disorders / Q000517:prevention & control*; D011829:Radiation Dosage; D013471:Sunburn / Q000517:prevention & control*; D013473:Sunscreening Agents / Q000008:administration & dosage*; D014466:Ultraviolet Rays / Q000009:adverse effects*
chemical_list: D013473:Sunscreening Agents