65 citations
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February 1992 in “Development” Type II keratin genes are crucial for hair follicle differentiation and have a conserved structure and expression pattern.
24 citations
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December 1957 in “Experimental Cell Research” The glassy layer of hair follicles has different fibril sizes and arrangements in guinea pigs and young mice.
January 1997 in “Han-guk hyeonmigyeong hakoeji/Applied microscopy” The hair follicle's connection to connective tissue is weaker than the skin's.
309 citations
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October 2007 in “Biomaterials” Keratin from human hair helps nerves heal faster.
December 2025 in “Doğu Fen Bilimleri Dergisi” Vimentin, desmin, and laminin help maintain rat skin structure.
41 citations
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July 1994 in “Journal of Dermatological Science” Hair follicle cells need complex interactions to fully differentiate.
July 2007 in “Manuals in biomedical research” 39 citations
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June 2012 in “Journal of Structural Biology” Disulfide bonds are crucial for hair structure during keratinization.
198 citations
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October 1986 in “Differentiation” 23 citations
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December 1977 in “Virchows Archiv B Cell Pathology” 13 citations
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February 2019 in “Zoology” Lustre mutant sheep have normal hair structure and proteins but differ in felting properties.
2 citations
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January 1990 
13 citations
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July 2017 in “Biopolymers” Recombinant keratins can form useful structures for medical applications, overcoming natural keratin limitations.
16 citations
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January 1977 21 citations
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June 2002 in “International Journal of Cosmetic Science” Advancements in hair keratin research could lead to better hair health treatments.
62 citations
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August 2006 in “Journal of Chromatography B” Modern techniques have improved the understanding of keratin proteins, revealing their roles in various cells and potential in disease diagnosis.
12 citations
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January 1994 in “PubMed” Elastic fiber arrangement in mammal skin varies by hair density and body region.
January 2013 in “Wool textile journal” March 2010 in “Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature” Beard hair medulla cells have a unique and varied keratin pattern.
19 citations
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July 1964 in “PubMed” Hair follicle cells become four types: medulla, cortex, cuticle, and inner root sheath.
Keratin gel may help repair damaged nerves.
24 citations
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November 2015 in “Scientific reports” Human hair has a new region with ordered filaments and the cuticle contains β-keratin sheets.
21 citations
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June 2003 in “Journal of Morphology” Monotreme and marsupial skin proteins show primitive features and species-specific differences compared to placental mammals.
15 citations
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May 2010 in “International Journal of Cosmetic Science” The cell membrane complex in mammalian hair has three distinct types with different structures and chemical properties.
8 citations
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August 1993 in “Colloid & Polymer Science” The observed "toughening" in keratin was actually due to water evaporation, not a real change in keratin.
23 citations
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February 1993 in “Journal of Investigative Dermatology” 
16 citations
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January 2017 in “Physical chemistry chemical physics/PCCP. Physical chemistry chemical physics” The 3D structure of a key hair protein was modeled, revealing specific helical structures and stabilization features.
October 2015 in “Cosmetic Dermatology” Hair is complex, varies in type, and plays a big role in attractiveness and culture.
November 2011 in “International Society of Hair Restoration Surgery” Keratins are key to developing and regenerating hair follicles for treating hair loss.