[Study on phototoxicity and photoallergy of a preparation containing 10 p. 100 benzoyl peroxide after topical application on guinea-pigs (author's transl)].

Attention is focused on benzoyl peroxide as a possible phototoxic derivate. To ascertain this activity, the compound, in a pharmaceutical composition, was tested by skin painting on guinea-pigs. The preparation, containing 10 p. 100 benzoyl peroxide, was applied topically. Irradiation was carried out by an artificial source of UVA and UVB.