October 2019 in “Skin appendage disorders” The vitreous membrane in hair follicles changes shape during the hair cycle and may affect hair growth and nutrient exchange.
15 citations
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May 2013 in “American Journal of Medical Genetics - Part A” People with X-linked hypohidrotic ectodermal dysplasia have no sweat ducts and less, thinner hair.
November 2024 in “Journal of Microscopy” Human hair varies in structure based on curl type, with high curl hair showing the most differences.
15 citations
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August 2020 in “Analytical chemistry” Hair lipids do not protect against humidity.
April 2017 in “Journal of Investigative Dermatology” 22 citations
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January 1985 Water makes hair more flexible, especially the outer layer.
91 citations
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December 2000 in “The journal of cell biology/The Journal of cell biology” Scientists successfully created mouse hair proteins in the lab, which are stable and similar to natural hair.
3 citations
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January 2021 in “Veterinary dermatology” A litter of cats had a hair condition similar to a mouse mutation, leading to hair loss and abnormal hair and skin.
3 citations
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March 2009 in “Hirosaki University Repository for Academic Resources (Hirosaki University)” Hirosaki hairless rats have sparse, twisted hair due to missing hair keratin genes.
March 1995 in “The Journal of Dermatology” Immature hair cells can grow and change into different types of hair cells over time.
March 1956 in “Institutional Repositories DataBase (IRDB)” January 2026 in “Digilib Repository Unila (Lampung University)” Celery essential oil at 2% can effectively promote hair growth.
34 citations
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January 2004 in “Genomics” A cluster of 21 keratin-associated protein genes important for hair growth was found on human chromosome 21.
32 citations
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February 2018 in “Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy” Cosmetic residues on individual hairs can be identified and differentiated using ATR FT-IR microspectroscopy.
5 citations
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September 2020 in “Molecules” Extracts from three Polynesian plants were found to promote hair growth by affecting cell growth and gene expression related to hair.
14 citations
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January 1988 4 citations
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January 2004 DanGuiBoHyulTangGami-Bang helps hair growth but doesn't extend the growth period or affect hair follicle cells significantly.
3 citations
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February 2021 in “Experimental dermatology” Dermal papilla microtissues could be useful for initial hair growth drug testing.
The inner root sheath in hair follicles plays a key role in hair growth and health.
April 2016 in “Journal of Investigative Dermatology” Wnt ligands, produced by dermal papilla cells, are essential for adult hair growth and regeneration.
3 citations
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July 2019 in “Fibers And Polymers/Fibers and polymers”
71 citations
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October 2008 in “The journal of investigative dermatology/Journal of investigative dermatology” HFMs can help study hair growth and test potential hair growth drugs.
52 citations
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January 2003 in “Journal of Investigative Dermatology” Thrombospondin-1 is crucial for hair follicle regression and reduced blood vessel growth during the catagen phase.
49 citations
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April 2006 in “Journal of Investigative Dermatology” TRPV1 helps regulate hair growth cycles.
January 2008 in “American journal of clinical dermatology” 11 citations
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April 1993 in “PubMed” Human hair cells can change based on their environment, especially interactions with certain skin cells.
September 1984 in “Journal of Biological Education” Human hair growth involves active, resting, and intermediate phases, and examining plucked hairs can teach students about hair biology and diseases.
28 citations
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March 2010 in “Histochemistry and cell biology” Skin cells can help create early hair-like structures in lab cultures.
62 citations
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December 2008 in “Journal of structural biology” Hair curvature in Japanese people is linked to specific cell types and filament arrangements in the hair cortex.
July 2022 in “Zenodo (CERN European Organization for Nuclear Research)”