Use of unsymmetrically substituted triazine derivatives in cosmetic or dermatological preparations for maintaining the urocanic acid status of the skin

The present invention relates to cosmetic and dermatological preparations containing unsymmetrically substituted triazine derivatives. In further embodiments, the present invention relates to preparations for protecting the skin against UV radiation. The invention further relates to dermatological preparations which maintain and improve the immune status of human skin. Use of one or more unsymmetrically substituted s-triazine derivatives in cosmetic or dermatological preparations for preventingthe washing out or washing off, caused by the action of water, of endogenous skin cis- and trans-urocanic acid from human skin orthe washing out or washing off, caused by the action of water, of cis- and trans-urocanic acid applied artificially to the skin from human skin.