Oxidation hair dyes based on 4-aminophenol derivatives of the general formula (I) …<IMAGE>… where R is an alkyl radical with 1 to 4 carbon atoms, a monohydroxyalkyl radical, an aminoalkyl radical with 2 to 4 carbon atoms which can be substituted by alkyl radicals with 1 to 4 carbon atoms, or a dihydroxyalkyl radical with 3 to 4 carbon atoms, or the salt thereof as developer substance are described. The application also relates to the developer substances 4-amino-2-propoxymethylphenol, 4-amino-2-isopropoxymethylphenol and 4-amino-2-(2-hydroxyethoxymethyl)phenol. The developer substances of the formula (I) have equally good dyeing characteristics but better physiological properties than the p-aminophenol mainly used hitherto for red dyeings. 
OXIDATION HAIR DYES BASED ON 4-AMINOPHENOL DERIVATIVES AS WELL AS NEW 4-AMINOPHENOL DERIVATIVES