Recently, a straightening iron has become a requirement for women because gone are the days when curly hair or rolled in hair was the norm. Straight hair appears to be new tendency now.
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Image by jasohill I have not been able to find sales numbers for hair coloring products. Ideally I would like to find out how much people (M/F) spend each year on hair coloring products (in the salon and over the counter) and howe much of those products are for coloring grey hair…
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