June 2025 in “Clinical and Experimental Dermatology” In this case report, a 25-year-old woman with alopecia areata experienced hair regrowth after treatment with baricitinib, despite not responding to conventional treatments, with the new hair initially appearing dark brown.
July 2024 in “Dermatology and Therapy” This study found that individuals with black hair have a significantly higher risk of alopecia areata compared to those with dark brown hair, while lighter hair colors like red or blonde are associated with a lower risk.
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.
August 2018 in “Pediatric Dermatology” This case report describes a unique instance of an otherwise healthy infant with phylloid terminal hair nevus, a form of hypomelanosis without extracutaneous abnormalities.
This study developed a natural hair dye using Coreopsis tinctoria Nutt. extract, finding that it produced yellow to dark brown colors depending on the treatment, with ferrous lactate enhancing dye performance and color stability after washing.