27 citations
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October 2020 in “Experimental Dermatology” This study found that both extensive grey hair and alopecia were independently associated with increased COVID-19 severity among survey respondents in Brazil.
17 citations
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February 2011 in “International Journal of Cosmetic Science” This study found that individual differences between pigmented and unpigmented hair fibers in Old Order Mennonites suggest grey hair may be perceived as drier and less manageable due to small mechanical and moisture changes.
February 2025 in “International Journal of Molecular Sciences” In this study, researchers identified significant differences in lipid composition between grey and black hair follicles in women with type 2 diabetes and healthy controls, suggesting these lipids may contribute to the production of grey hair and may offer targets for anti-grey-hair treatments.
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.
2 citations
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September 2020 in “Schweizer Archiv für Tierheilkunde” This study found that Swiss cattle exhibiting rat-tail syndrome are heterozygous for genetic variants linked to pigmentation and color dilution, likely due to Holstein introgression in the Simmental breed.