January 2007 in “Journal of the American Academy of Dermatology” A 73-year-old man's grey-white hair turned dark brown after eczema treatment.
17 citations,
January 2015 in “Dermatology online journal” A patient's grey hair regained color during treatment with adalimumab.
Hair can naturally regain color, and stress might influence greying and its reversal.
36 citations,
September 2011 in “British Journal of Dermatology” White hair grows thicker and faster than black hair due to higher activity of growth-related genes and proteins.
56 citations,
November 2010 in “Pigment Cell & Melanoma Research” Brain hormones significantly affect hair color and could potentially be used to prevent or reverse grey hair.