Different treatments change the strength and flexibility of human hair.
4 citations
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November 1968 in “Textile research journal” Hair fibers may have a unique, non-protein sheath not previously identified.
May 2026 in “Applied Spectroscopy” Humidity affects hair structure changes during stretching.
January 2025 in “Open University of Cape Town (University of Cape Town)” Lipids play a key role in determining hair curvature.
3 citations
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July 2003 in “PubMed” The research found a way to measure hair surface changes by analyzing how light reflects off of it, and determined hair cuticle angles vary by hair length and color.
Curly hair may be caused by a muscle contraction, and muscle relaxants might help treat it.
27 citations
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September 1988 in “PubMed” Hair follicle shape determines hair type: curly, straight, or in-between.
10 citations
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January 2002 in “Nihon Keshouhin Gijutsushakaishi/Journal of S C C./Nihon Keshouhin Gijutsushakai kaishi” The cuticle significantly contributes to hair stiffness, making up about 60% of the total bending stress.
February 2026 in “Small Ruminant Research” The IRF2BP2 gene affects sheep fleece quality by influencing fiber traits.
49 citations
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June 2004 in “Philosophical Transactions of the Royal Society A Mathematical Physical and Engineering Sciences” Human hair becomes weaker and stretches more easily at higher temperatures.
January 2024 in “Indian Journal of Pharmaceutical Sciences” Relaxing the Arrector Pili Muscle might make curly hair straighter.
1 citations
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June 1998 in “Journal of Forestry Research” Mammalian hair scales change from smooth to wavy due to friction.
The new method can tell how hair fibers react to moisture after treatments.
August 2010 in “Journal of The American Academy of Dermatology” The document explains the diagnosis and characteristics of woolly hair nevus and alopecia neoplastica.
April 2008 in “Expert review of dermatology” Mutations in the P2RY5 gene cause hereditary woolly hair.
Genes and metabolites affect cashmere fiber thickness, which can improve cashmere quality.
21 citations
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December 1994 in “British Journal of Dermatology” Sheep dermal papillae can help form hair follicles in skin models.
3 citations
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July 2019 in “Fibers And Polymers/Fibers and polymers” Otter rabbit, mink, and blue fox fur can be identified by their unique hair structures.
46 citations
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January 2009 in “Textile Research Journal” Researchers developed a new method to identify animal hair in textiles, which is effective for various fibers and more reliable than previous methods.
38 citations
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October 2011 in “Analytical biochemistry” Hair proteins have weak spots in their α-helical segments.
34 citations
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August 1966 in “Experimental cell research” Keratin fibrils in hair form and stop growing at specific points in the follicle.
30 citations
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March 2019 in “Archives animal breeding/Archiv für Tierzucht” The KRTAP15-1 gene affects cashmere fiber thickness in goats.
23 citations
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March 1989 in “The Veterinary clinics of North America. Food animal practice” Llamas often have skin issues like mange, bacterial infections, and allergies, with some treatable by zinc.
18 citations
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January 2008 in “Sen'i Gakkaishi” Thioglycolic acid and L-cysteine change hair structure differently during perms, affecting hair strength and curling efficiency.
16 citations
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October 2003 in “Journal of applied polymer science” 2-iminothiorane hydrochloride improves hair waving permanence without damage.
15 citations
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April 2007 in “Journal of child neurology” An 11-month-old boy with Menkes disease had severe brain shrinkage and abnormal blood vessels, and didn't respond well to treatment.
14 citations
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September 1954 in “Textile Research Journal” Hair absorbs different substances from solutions based on pH levels.
3 citations
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January 2021 in “ScienceAsia” Using an enzyme and keratin treatment can significantly repair and strengthen damaged hair.
3 citations
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January 2009 in “Sen'i Gakkaishi” Using both TGA and DTDG in hair straightening reduces hair damage compared to using TGA alone.