127 citations
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November 2010 in “Pigment cell & melanoma research” We need more research on human hair follicle pigmentation, not just mouse models.
31 citations
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February 2007 in “Journal of Structural Biology” Oxidation changes the structure of hair protein filaments, causing them to compact and rearrange.
7 citations
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December 2010 in “대한의생명과학회지” Hair growth after depilation increases skin thickness, mast cell counts, and cell activity.
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.
103 citations
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March 2011 in “PLoS Biology” Birds can lose neck feathers due to a genetic change that increases a gene's activity, helping them adapt to heat.
1 citations
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November 2009
1 citations
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March 2015 in “Journal of Cutaneous Medicine and Surgery” Eyebrow hair transplants can regrow after high-dose radiation therapy.
1 citations
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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.
January 1995 in “Revista de arqueología” 1 alpha,25-dihydroxy-vitamin D3 and calcipotriol speed up cell differentiation in hair follicles.
April 2015 in “Dentistry 3000” Premature hair graying in the face may be influenced by genetics and environment.
5 citations
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July 2009 in “Clinical and experimental dermatology”
4 citations
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February 2018 in “Journal of Investigative Dermatology” The document concludes that a protein involved in hair growth may link to baldness and that more research is needed on its role in hair loss and skin cancer treatments.
89 citations
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May 2005 in “Stem Cells” Mouse skin has special cells in the epidermis that decrease with age and are linked to keratinocyte stem cells.
71 citations
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February 2006 in “Clinics in Dermatology” Pregnancy causes skin changes like darkening, hair thickening, nail changes, and increased risk of skin growths, most of which usually resolve after birth.
January 2005 in “Digital Commons - University of South Florida (University of South Florida)” Concerns about attractiveness and skin aging strongly influence tanning behaviors.
Hair can naturally regain color after greying, and this change may be linked to stress levels.
17 citations
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January 2015 in “Dermatology online journal” A patient's grey hair regained color during treatment with adalimumab.
2 citations
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January 2023 in “Bioresource Technology Reports”
June 2021 in “Clinical neuropsychopharmacology and therapeutics” Valproic acid can cause hair color change in older men.
28 citations
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May 2017 in “Molecular ecology” Researchers found genes that control hair color and growth change before the visible coat color changes in snowshoe hares.
1 citations
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December 1965 in “PubMed”
1 citations
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July 2018 in “Elsevier eBooks” Avoid chemical and physical damage to protect hair.
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.
4 citations
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September 2017 in “Dermatologic surgery” The combination therapy improved skin pigmentation.
7 citations
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June 2012 in “Journal of dairy science” Bovine milk fats applied to mouse skin can promote hair growth similar to known hair growth treatments.
18 citations
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February 2023 in “Plants” Purple glutinous rice extracts can help whiten skin and reduce aging signs.
1 citations
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April 2016 in “The American Journal of the Medical Sciences” The document concludes that doctors should check for frontal fibrosing alopecia in patients with acquired hyperpigmentation and that early treatment is important.
15 citations
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April 2011 in “The journal of investigative dermatology/Journal of investigative dermatology” A3B5 can reduce skin pigmentation and slow melanoma growth.