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January 1994 in “Micron” Mature hair surfaces are formed by keratinized cells with developed layers, not just modified plasma membranes.
April 2026 in “Journal of Ethnopharmacology” 1 citations
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August 2016 in “Hanbang an'i'bi'in'hu pibu'gwa haghoeji” YangHyulEum Gami-Bang extract may help treat hair loss.
April 2025 in “Biomacromolecules” Hyaluronic acid microneedles with herbal extracts may help regrow hair.
The FOS gene helps hair growth in Tan sheep.
1 citations
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January 1992 in “Bangladesh Journal of Animal Science” Camel skin has typical mammalian layers, with hair follicles, glands, and muscles, varying by body area.
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October 2009 in “Iranian Journal of Basic Medical Sciences” Buxus wallichiana extract improves hair growth and has antioxidant properties, with oral use more effective than topical.
9 citations
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March 2015 in “Journal of Microbiology and Biotechnology” Ultra-high molecular weight poly-γ-glutamic acid may help promote hair growth.
July 2025 in “Carbohydrate Polymers” The green alga Parachlorella sp. has potential for use in cosmetics and health products due to its antioxidant, anti-hypertensive, and hair growth properties.
19 citations
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October 1985 in “British Journal of Dermatology” The document concludes that unruly hair can be congenital or acquired, often lacks specific treatments, and can be managed with oils and short hairstyles.
20 citations
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December 2010 in “Journal of Morphology” Lizard claws have hair-like keratins similar to those in mammals.
January 2004 in “Linchuang pifuke zazhi” Black hairs have more pigment-related genes, while gray hairs have more keratin-related genes.
5 citations
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April 2019 in “DOAJ (DOAJ: Directory of Open Access Journals)” Stopping shaving or removing hair follicles usually resolves Pseudofolliculitis barbae.
April 2017 in “Journal of Investigative Dermatology” Sweat glands and hair follicles are determined by opposing signals, with BMPs promoting sweat glands and blocking BMPs leading to hair follicles.
Yak hair stretches mainly due to macromolecules slipping past each other.
17 citations
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June 2019 in “BMC genomics” Non-coding RNAs help control hair growth in cashmere goats.
18 citations
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August 2014 in “Lipids” Human hair has more unsaturated fats inside than on the surface, and certain lipids may help bind the outer and inner layers together.
23 citations
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January 2018 in “International Journal of Molecular Medicine” Baicalin helps hair growth by activating specific cell signals and pathways.
January 2023 in “Figshare” Mouse skin and hair aging starts at 200 days, with changes in hair follicles and more white hairs as signs of aging.
October 1976 in “BMJ. British medical journal”
13 citations
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April 1994 in “Journal of Investigative Dermatology” Androgen receptors found in monkey scalps, similar to humans, affect hair growth.
21 citations
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January 2020 in “Pharmaceutical Biology” Salvia plebeia extract can stimulate hair growth.
40 citations
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January 2016 in “PLoS ONE” Shorter daylight increases hair growth in Cashmere goats.
Certain short peptides can increase root hair growth in tobacco plants.
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November 2014 in “Journal of Comparative Physiology A” Spider joint hair sensilla are adapted to sense movement during walking.
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July 2012 in “Journal of integrative agriculture/Journal of Integrative Agriculture” Hoxc13 is linked to seasonal hair growth in Cashmere goats and is affected by melatonin.
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December 2022 in “BMC Genomics” The research improved understanding of yak hair growth to help use yak wool better.
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June 2013 in “Herba Polonica” The extract from Elephantopus scaber Linn. might help with hair growth in rats.
3 citations
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April 2018 in “JURNAL ILMU KEFARMASIAN INDONESIA” Ambon banana weevil extracts can be used in hair care products to promote hair growth.