[Ultraviolet absorption of prescription sunblocks in Mexico]. / Absorción ultravioleta de los protectores solares para prescripción en México.
Gac Med Mex
; 144(1): 35-8, 2008.
Article
em Es
| MEDLINE
| ID: mdl-18619056
ABSTRACT
BACKGROUND:
An appropriate sunscreen should provide high and broad ultraviolet protection both for the B and A range. The objective was quantify the ultraviolet absorption spectrum in sunscreens available for medical prescription, and analyze its relationship with the labeled Sun Protection Factor (SPF). MATERIAL ANDMETHODS:
Thirty-nine sunscreens were analyzed in vitro using ultraviolet spectroscopy following exposure to simulated solar irradiation.RESULTS:
Fifty-six percent of sunscreens absorbed 90% or more of ultraviolet radiation. Seventy-five percent (n = 34) absorbed more than 95% of ultraviolet B radiation, and 46% (n = 18) more than 90% of ultraviolet A. There was no significant association between ultraviolet absorption and SPF.CONCLUSION:
We were unable to estimate ultraviolet absorption only by its SPF. Protection differed considerably among products with similar SPF. Our study highlights regulation deficiencies in marketing practices of these products.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Protetores Solares
/
Raios Ultravioleta
Tipo de estudo:
Evaluation_studies
País/Região como assunto:
Mexico
Idioma:
Es
Revista:
Gac Med Mex
Ano de publicação:
2008
Tipo de documento:
Article