1,2,9,10-Tetraoxy-noraporphine derivatives (I) are new. Noraporphine derivatives of formula (I), in the form of pure optical isomers or their mixtures, and their salts are new. R1 - R5 = H, alkyl, aryl, aralkyl, acyl, sulfonyl or sugar residue; the compounds 2,9-dihydroxy-1,10-dimethoxy-6-methyl-noraporphine, 1,2,10-trimethoxy-9-hydroxy-6-methyl-noraporphine (I') and 1,2,9,10-tetramethoxy-6-methyl-noraporphine (I'') are excluded. An Independent claim is included for cosmetic or dermatological compositions containing (I), including (I') and (I'').
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