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Since the 17th century, Japanese women have used a mixture of rice bran and the feces of a species of nightingale (called uguisu in Japan) to lighten their skin. The habit was borrowed from Koreans, who were known to use bird droppings to remove difficult stains from their kimonos. Geishas and kabuki theater actors started using this exotic ingredient, called uguisu no fun, to clean their skin after they removed their dense white make-up.
