- Hair follicles contain several different types of cells, including melanocyte stem cells that generate cells that produce the pigment melanin responsible for hair color.
- A new study in mice shows that these melanocyte stem cells migrate between two sites in the hair follicle during each cycle of hair growth and shedding— from a site where they produce the pigment for hair color to another where they produce stem cells.
- The study found that aging results in a greater portion of these…
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