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Untangling the billion dollar hair trade industry

Beyond wigs and toupees, the demand for human hair far outstrips the supply. Emma Tarlo, author of the book Entanglement: The Secret Lives of Hair, says the trade in human hair is a billion dollar a year industry that spans the globe.

(Image: A woman strokes a long lock of hair that she bought from a customer in Yangon, Burma. Credit: Lauren DeCicca/Getty Images)

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4 minutes