Prediction of benzoyl peroxide phototoxicity by photoepidermotests after repeated applications. Preventive value of a UVB filter.


The predictive phototoxicity test known as photoepidermotest consists of twice daily applications of the product tested for 16 days, followed by total spectrum irradiation with a 2,500-W Xenon lamp in infraerythema and supraerythema doses. Phototoxicity is revealed by an erythema with the infraerythema dose and/or by accentuation of the erythema provoked by… (More)