| 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 % 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> |
