Method and composition for waving and straightening hair
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United States of America Patent
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Jun 23, 2009
Grant Date -
Nov 9, 2006
app pub date -
May 9, 2005
filing date -
May 9, 2005
priority date (Note) -
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Abstract
An improved process and composition for straightening or waving hair is achieved combining ammonium bisulfite and ethanolamine sulfite in a single mixture which is maintained at a pH of between about 6.5 and 8.0. By employing the present invention, long lasting, waved or straightened hair is attained. Furthermore, using the hair waving/straightening composition and method of the present invention, the desired waving and/or straightening of hair fiber is achieved in a single step, without the need for a separate application of an oxidizing or neutralizing agent.
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