Patents

Kao Patents Leave-In Hair Treatment

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By: TOM BRANNA

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US Patent No. 9,554,972 B2; Kao Germany, has patented a leave-in hair conditioning composition in microemulsion form. It contains a cosmetically acceptable aqueous medium, a surfactant as an emulsifier, mineral oil, silicone oil, and a polyethyleneglycol selected from the group consisting of PEG-20M, PEG-23M, PEG-25M, PEG-45M, PEG-90M, PEG-115M and PEG-160M....

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