The Root of every strand of hair is surrounded by a tube of tissue under the skin that is called the hair follicle. Each follicle contains pigment cells. These cells continuously produce a chemical called melanin that gives the growing shaft of hair its color. As we got older, the pigment cells in our hair follicles gradually die. When there are fewer pigment cells in a hair follicle, that stand of hair will no longer contain as much melanin and will become a more transparent color - like grey, silver or white-as it grows.
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December 2012
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