Use of metal salts and chelates together with chlorites as...

Details Use of metal salts and chelates together with chlorites as... Use of metal salts and chelates together with chlorites as...

A - Human Necessities

45

D

A45D 19/00 (2006.01) A61K 7/13 (1990.01)

Patent

CA 2121623

ABSTRACT Compositions, methods and kits are provided for dyeing hair using oxidizable hair dye precursors in which the oxidation is conducted in the presence of at least one selected chlorite salt together with selected redox metal salts, chelates of such salts and mixtures of the salts and/or chelates. The chlorite salt may be sodium chlorite and the redox metal salt may be copper, iron, manganese or cobalt. The oxidizable hair dye precursor may be oxidative primary intermediates, mixtures containing an oxidative primary intermediate and a coupler, dihydroxyindole or an analog thereof which will oxidize to form melanin, and mixtures containing an oxidative primary intermediate and a coupler together with dihydroxyindole or an analog thereof which will oxidize to form melanin.

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