Patent ID: 8053573

Claim:
A method for protecting human skin and/or hair from UV-A and/or UV-B and/or UV-C rays, comprising the application to said human skin and/or hair of an effective amount, of one or more 5,6-diphenyl-1,2,4-triazinic compounds of formula (I): wherein: the bonds that penetrate into the ring indicate an indifferent substitution position of ortho, meta or para, R 1 and R 2 , identical or different, represent a hydrogen, fluorine, chlorine or bromine atom, a C 1 to C 12 linear or branched alkyl group, a hydroxy group, a C 1 to C 18 linear or branched alkoxy group, a poly(ethoxy)-alkoxy group with a C 1 to C 4 alkyl fragment and an ethoxy number ranging from 1 to 4, an amino group, or a mono- or di-alkylamino group with a C 1 to C 4 alkyl fragment, R 3 represents a phenyl group optionally substituted 1 to 3 times in ortho, meta or para position with a C 1 to C 12 alkoxy or a cyano.