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Comparison of UVA protection afforded by high sun protection factor sunscreens.
Division of Dermatology, University of Montreal Hospital Centre, Montreal, Quebec, Canada. rbissonn@globetrotter.qc.ca
UVA protection afforded by 6 different sunscreens with a sun protection factor of 21 or more was compared by means of the persistent pigmentation darkening method. Colorimetric and visual assessment showed significant differences in UV radiation-induced pigmentation at 2 hours. The labeled sun protection factor of the tested sunscreens was not predictive of UVA protection level.
PMID: 11100019 [PubMed - indexed for MEDLINE]
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