“…Several arylamines were found in hair dyes including N -methylaniline, aniline, diphenylamine, 2MA, 3MA, 4MA, 2-methoxyaniline, 4-chloroaniline, 2-aminophenol, 1- and 2-naphthylamine, and 4-nitroaniline, 1,2-, 1,3-, and 1,4-phenylenediamine (14PDA), 3-aminophenol, 4-aminophenol, 2,4-, 2,6-, and 3,4-toluenediamine (34TDA), 4ABP, 4-chloro-1,2-phenylenediamine, and 2-nitro-1,4-phenylenediamine. Arylamines are moderately to extremely toxic. ,, The main health hazards linked to arylamine exposure are methemoglobinemia (metHb) and cancer . These toxic effects are caused by N-oxidized metabolites of arylamines. − …”