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United States of America Patent
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Issued Date -
Jul 10, 2014
app pub date -
Jul 27, 2012
filing date -
Jul 29, 2011
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Abstract
A method of removing colour from hair that has been oxidatively dyed, the method comprising the steps of: (a) contacting the hair with a composition comprising a sulfur-containing nucleophile or a precursor thereof; (b) contacting the hair with an acidic composition; and (c) contacting the hair with an oxidising composition; wherein there is no rinsing step between step (a) and step (b).
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