Roche Vitamins Inc.

Magali Pochon

Hans Ulrich Gonzenbach

Alain Bringhen

Dominique Sidrac

The invention relates to a cosmetic light-screening composition for protecting human skin or human hair against ultraviolett radiation containing at least one compound of formula I ##STR1## wherein R.sup.1 represents a C.sub.1-8 straight or branched alkyl chain, and

Light screening compounds and compositions

The invention relates to a composition which comprises a dibenzoylmethane capable of absorbing UV-A radiation and a compound of formula I ##STR1## wherein R.sup.1 and R.sup.2 are independently hydrogen, alkyl or alkoxy containing 1 to 18 carbon atoms provided that R.sup.1 and R.sup.2 are not both hydrogen; and n is 1 or 2 in an amount effective to photostabilize the dibenzolymethane, and a cosmetically acceptable carrier, and to cosmetic light-screening compositions containing at least one of the above agents, the use of the cosmetic light-screening compositions for the protection of the human skin and human hair against the ultraviolet radiation of wavelengths between about 320 and 400 nm (UV-A) and optionally also between about 290 and 400 nm (UV-B).

Growing community of inventors

Geneva, Switzerland

Magali Pochon