Indole-aldehyde hair dyes

A - Human Necessities – 61 – K

Patent

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167/302, 8/6

A61K 8/49 (2006.01) A61Q 5/10 (2006.01)

Patent

CA 1333364

Combined indole-aldehyde compositions for dyeing natural fibers, particularly for coloring human hair, are taught wherein the combined indole-aldehyde composition is either preformed or reacted in situ on the natural fiber under acidic conditions. A method employing said compositions is also taught.

604326

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