| http://www.w3.org/ns/prov#value | - It is known to dye keratinous fibers, for example human keratinous fibers such as the hair, with dyeing compositions comprising oxidation dye precursors, which may be known as oxidation bases, such as ortho- and para-phenylenediamines, ortho- and para-aminophenols, and heterocyclic bases.
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