Study links 'stuck' stem cells to hair turning gray

Certain stem cells have a unique ability to move between growth compartments in hair follicles, but get stuck as people age and so lose their ability to mature and maintain hair color, a new study shows.

New study sheds light on early human hair evolution

Hair is an important feature of primate—including human—diversity and evolution, serving functions tied to thermoregulation, protection, camouflage and signaling. However, the evolution of wild primate hair remained relatively ...

Gentler, safer hair dye based on synthetic melanin

With the coronavirus pandemic temporarily shuttering hair salons, many clients are appreciating—and missing—using hair dye to cover up grays or touch up roots. Whether done at a salon or at home, frequent coloring, however, ...

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