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.
January 2005 in “Seibutsu Butsuri/Seibutsu butsuri” Chemical treatments damage hair more than UV exposure, making it thinner and less flexible.
November 2025 in “Physics of Fluids” Low-intensity ultrasound can safely enhance hair regrowth by selecting the right frequency and intensity.
1 citations
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January 2002 Hair shine can be measured by how it reflects laser light.
6 citations
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August 1937 in “Journal of the Society of Chemical Industry”
16 citations
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April 2017 in “ACM Transactions on Graphics” Light scatters differently from elliptical hair fibers than from circular ones, and a new model better predicts this behavior, especially for shiny highlights.
6 citations
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March 1996 in “Journal of Investigative Dermatology”
1 citations
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January 2014 in “Sen'i Gakkaishi” The new method reliably identifies and measures different animal hair fibers in textiles.
1 citations
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February 2015 in “Zenodo (CERN European Organization for Nuclear Research)” Different hair fiber brands have unique electrostatic and dielectric properties.
January 2018 in “대한미용학회지” White hair is denser and more hydrophobic than black hair.
20 citations
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July 1988 in “Clinics in dermatology” Thioglycolate lotions are the most popular method for permanent waving and hair straightening.
1 citations
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September 2024 in “International Journal of Cosmetic Science” Bleaching hair increases pore size and changes pore structure.
1 citations
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January 1987 in “Journal of Society of Cosmetic Chemists of Japan” The method accurately measures hair damage and strength, revealing effects of cosmetics and metal correlations.
4 citations
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April 2018 in “Biotechnology Letters” Human growth factor 20 can boost mouse whisker growth.
1 citations
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June 2014 in “[Thesis]. Manchester, UK: The University of Manchester; 2014.” Chemical modifications can alter hair's stability and flexibility, with hydrophobic interactions helping maintain structure in humid conditions.
7 citations
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July 2017 in “bioRxiv (Cold Spring Harbor Laboratory)” Passage numbers affect cell growth and experiment results.
July 2023 in “Polish Journal of Veterinary Sciences” Commercial dog shampoos vary in quality and characteristics.
1 citations
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January 1993 in “Skin Pharmacology and Physiology” Hair growth drugs and epidermal growth factor do not change the calcium binding site gradient in hair follicles.
Wavy sinus hairs in cats are linked to feline leukemia virus infection.
675 nm laser therapy effectively improves hair growth in Indian patients with androgenetic alopecia.
November 2024 in “Journal of Microscopy” Human hair varies in structure based on curl type, with high curl hair showing the most differences.
January 2022 in “Mammalian Genome” The wavy coat in NCT mice is caused by multiple genes, including a mutation in the Prss53 gene.
20 citations
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October 1995 in “Biochimica et Biophysica Acta (BBA) - Gene Structure and Expression” hHb1, hHb3, and hHb6 mRNAs start expressing at the same time in hair follicles.
January 2003 in “Research Portal (King's College London)” Hair color affects light reflection, with black hair having higher cuticle angles and lighter hair showing less specular reflection.
January 2009 in “Nihon Keshouhin Gijutsushakaishi/Journal of S C C./Nihon Keshouhin Gijutsushakai kaishi” Curved human hair has different structures on each side, which might cause its shape and is similar to wool.
15 citations
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June 2015 in “Lasers in Medical Science” The 830-nm wavelength was most effective at promoting hair growth in rats using low-level laser therapy.
September 1972 in “大会学術講演梗概集. 構造系” The document explains common hair disorders and the basics of hair anatomy and life cycle.
July 2025 in “Journal of Investigative Dermatology” Wnt signaling helps regenerate hair follicles in wounds by reducing skin cell sensitivity to mechanical stress.
7 citations
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October 1963 in “Textile Research Journal” Merino wool fibers change shape with moisture, while human hair shape stays the same.
97 citations
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January 2005 in “Wear” Human hair and skin friction vary by ethnicity, hair type, and environmental conditions.