title: [Evaluation of the protection factor (PF) against UV-A in vivo].
abstract: Several papers have dealt with evaluation of protection factors against UV-A. There is still no standardized method accepted for this evaluation. Difficulties in the technique are emphasized. The author has assayed the immediate pigment darkening reaction as evaluation for different broad band filter preparations.
authors.affiliation: Departamento de Dermatología, Hospital Clínico y Facultad de Medicina, Barcelona.
authors.forename: M
authors.initials: M
authors.lastname: Lecha
mesh_terms: D000293:Adolescent; D000328:Adult; D004341:Drug Evaluation; D006801:Humans; D013473:Sunscreening Agents / Q000494:pharmacology*; D014466:Ultraviolet Rays
chemical_list: D013473:Sunscreening Agents
vernacular_title: Evaluación del factor de protección (FP) frente a UV-A in vivo.