April 2023 in “Journal of Investigative Dermatology” Aging changes skin cells, leading to different DNA methylation and gene activity, affecting cell metabolism and aging signs.
12 citations
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January 2025 in “Nature Reviews Molecular Cell Biology” 1 citations
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March 2017 in “Roczniki Naukowe Polskiego Towarzystwa Zootechnicznego” Domestic cat hair varies in thickness and length, with guard hairs being longest and thickest, and all hair types mainly contain keratin.
7 citations
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January 2011 in “Biochemistry Research International” Hard α-keratin has a universal molecular structure with a specific superlattice arrangement.
28 citations
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July 1980 in “British Journal of Dermatology” The hair disorder was caused by abnormal protein formation, making hair easily damaged.
August 1993 in “Journal of Dermatological Science” 
August 2023 in “Drug Delivery and Translational Research” Human hair keratin was used to create a scaffold that could help with skin repair.
70 citations
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December 1968 in “Journal of Investigative Dermatology” 
24 citations
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September 2002 in “Dermatologic Surgery” The study found that hair follicles are above muscle connections in the scalp, which may help protect stem cell areas.
July 2025 in “Journal of Investigative Dermatology” Tissue-engineered skin substitutes can model junctional epidermolysis bullosa and may help develop gene therapy.