126 citations
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January 2009 in “International Journal of Trichology” Oxidative stress contributes to hair graying and loss as we age.
31 citations
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April 2019 in “Journal of Cutaneous Pathology” Hair becomes gray and thin as we age, and while most hair loss in older people is due to genetics, there's a chance for gray hair to regain color under certain conditions.
16 citations
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November 2017 in “British Journal of Dermatology” Cells in hair die by breaking down their DNA and mitochondria as they form keratin.
7 citations
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November 2022 in “International Journal of Molecular Sciences” As Japanese males age, their hair darkens due to increased melanin, with males generally having darker hair than females.
14 citations
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April 2005 in “Experimental Dermatology” Stressed fibroblasts greatly increase melanin production in hair, skin, and eye cells, mainly due to a growth factor called bFGF.
2 citations
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July 2023 in “International Journal of Molecular Sciences” BFNB could be a promising treatment for hair growth.
6 citations
,
January 2013 in “Experimental dermatology” Bimatoprost increases hair growth in mice without breaking down into other substances.
March 2007 in “International Journal of Cosmetic Science” Hair with more melanin resists weather damage better.
September 2017 in “Journal of Investigative Dermatology” Aging causes sweat glands to shrink, leading to skin issues, and blue light can help hair grow.
13 citations
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August 2019 in “Biological & Pharmaceutical Bulletin” Certain flavonoids help grow back colored hair after skin injury.
217 citations
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February 2009 in “The FASEB Journal” Gray hair is caused by hydrogen peroxide buildup, which damages hair color repair.
25 citations
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October 2002 in “The journal of investigative dermatology/Journal of investigative dermatology” Mouse profilaggrin helps in skin cell differentiation and may be involved in calcium signaling.
2 citations
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June 2009 in “Journal of the American Academy of Dermatology” The treatment didn't work for the woman's hair loss and skin darkening.
22 citations
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December 2014 in “Naunyn-Schmiedeberg's Archives of Pharmacology” Baicalin helps hair grow by boosting certain cell activities and speeding up hair cycle in mice.
September 2018 in “CRC Press eBooks” Hair and nail disorders can cause changes in scalp pigmentation, especially with sun exposure and alopecia.
3 citations
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December 2024 in “International Journal of Dermatology” Premature hair graying is caused by genetics, stress, and lifestyle, and affects mental health.
July 2022 in “The journal of investigative dermatology/Journal of investigative dermatology” Increasing type 17 collagen reduces aging signs in skin cells caused by UV light.
2 citations
,
January 2015
January 2026 in “SSRN Electronic Journal” Riboflavin with blue light speeds up hair dyeing, making it faster, safer, and long-lasting with less hair damage.
Dark hair with a red beard likely evolved for camouflage, not attraction.
The mutation helps mice handle heat better without affecting hair growth.
99 citations
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June 2005 in “Journal of Cosmetic Dermatology” Hair ages due to genetics and environmental factors, leading to graying and thinning, with treatments available for some conditions.
1 citations
,
July 1935 in “Nature” Animal hair can curl tightly on its own, especially in foxes, due to changes in keratin.
12 citations
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February 2019 in “Skin research and technology” White hair has less lipid content and absorbs water differently than brown hair.
9 citations
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September 2020 in “Journal of cosmetic dermatology” A woman developed vitiligo from repeated eyebrow microblading.
82 citations
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November 1985 in “Archives of Dermatology” The newborn's skin condition improved over time, leaving only lighter skin patches.
1 citations
,
January 2020 in “Qucosa (Saxon State and University Library Dresden)” Fine hair on bovine leathers is hard to remove, lowering leather quality and value, but can be managed with specific processing methods.
99 citations
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March 2013 in “Journal of Investigative Dermatology” Mutations in the ABCB6 gene cause Dyschromatosis Universalis Hereditaria.
1 citations
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April 2008 in “Pigment Cell & Melanoma Research” Foxn1 is essential for hair pigmentation by directing pigment transfer to hair cells.
November 2014 in “Springer eBooks” Using a patient's own tissue for browlifting can improve both the position and fullness of the brow for a longer-lasting rejuvenation.