Benzylidenecamphor-substituted silanes/organosiloxanes for use in photostabilizing sunscreen compositions comprising dibenzoylmethane compounds

摘要

Improvedly photostable, topically applicable cosmetic/dermatological sunscreen compositions well suited for enhanced photoprotection of human skin and/or hair against the damaging effects of UV-A and UV-B irradiation, particularly solar radiation, comprise (i) a photoprotecting effective amount of at least one dibenzoylmethane UV-screening compound, and (ii) an amount of at least one silane or organosiloxane substituted by a benzylidenecamphor functional group effective to photostabilize said at least one dibenzoylmethane UV-screening compound (i). Novel silanes or organosiloxanes substituted by a benzylidenecamphor functional group are also described.