| 摘要 |
<p>The invention relates to a hair colour composition, in particular a hair colour composition comprising a flavonoid, a catalyst consisting of iron (II) or cobalt (II) complexed to a non-proteinaceous heterocyclic macrocycle ligand composed of pyrrole or pyrroline subunits, and either a hydrogen peroxide generator or 0.0001 to less than 1.5 pcnt w/w hydrogen peroxide. The flavonoid is selected from the group consisting of flavones, isoflavones, flavans, isoflavans, flavanones, flavonols, flavan-3-ols, dihydroflavonol, flavanonols, proanthocyanidins, aurones, chalcones, dihydrochalcones, flavonolignans, and derivatives thereof, wherein the hair colour composition has a pH of 4.5 to 8.0, preferably 5.5 to 7.5.</p> |
