Hair dyeing agent, hair dyeing product combination, and its use method
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United States of America Patent
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Dec 18, 2012
Grant Date -
May 31, 2012
app pub date -
Jun 24, 2010
filing date -
Jun 24, 2009
priority date (Note) -
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Abstract
A hair dyeing agent, a combination of the hair dyeing agent and a softener for dyeing hair and the method of using the combination are disclosed. The hair dyeing agent comprises a dye active, a mordant active, a stabilizer, water, and a carrier and/or an excipient. The dye active is selected from gallic acids, salts and esters thereof and their combinations. The mordant active is a ferrous salt selected from ferrous sulfate, ferrous chloride, ferrous nitrate, ferrous gluconate, ferrous lactate and ferrous fumarate.
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