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Hair LightenerPatented by L’Oréal

February 4, 2013

 

US Patent No. 8,066,781 B2;L’Oréal S.A., Paris, France,has patented a composition for dyeing or lightening human keratin fibers. It is comprised of, in a cosmetically acceptable medium, at least one fatty substance; at least one cationic polymer; at least one dye chosen from oxidation dyes and direct dyes; at least one basifying agent; at least one oxidizing agent and water.
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