March 2020 in “Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature” The dermal sheath's contraction is crucial for hair follicle regression and stem cell relocation.
December 2023 in “Materials Today Sustainability” Scientists made glow-in-the-dark dots from human hair that can detect iron, prevent counterfeiting, and reveal fingerprints.
The conclusion cannot be provided because the document is not accessible.
April 2025 in “Dermatology Practical & Conceptual” UV-enhanced trichoscopy helps diagnose hair shaft disorders like pili annulati.
40 citations
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September 2004 in “Biomacromolecules” The Glu413Lys mutation in keratin affects hair stability, while Glu413Asp does not.
Different treatments change the strength and flexibility of human hair.
4 citations
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December 2020 in “Journal of the American Academy of Dermatology” Pulling 2 or fewer hairs is normal for all hair types, including Afro- and Asian-textured hair.
87 citations
,
July 2009 in “The journal of investigative dermatology/Journal of investigative dermatology” Human beard hair medulla contains a unique and complex mix of keratins not found in other human tissues.
1 citations
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May 2018 in “Emergency Nurse” Educating healthcare workers and parents about hair toe tourniquets can help prevent serious complications.
15 citations
,
January 2011 in “International journal of trichology” Using a hot iron on wet hair can cause dry, brittle hair with air bubbles inside.
30 citations
,
November 2012 in “Proceedings of the Royal Society B Biological Sciences” Hard α-keratins stay stiff in water because the surrounding matrix keeps them dehydrated and strong.
23 citations
,
February 2015 in “International Journal of Molecular Sciences” Colchicine can inhibit hair growth by affecting cell activity and protein expression in hair follicles.
45 citations
,
April 2009 in “Journal of anatomy” Cat claws stay sharp by shedding their outer layer through microcracks formed during activities.
April 2016 in “Journal of the American Academy of Dermatology” A 4-year-old girl had a rare hair disorder affecting only part of her scalp.
7 citations
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June 2018 in “Journal of the American Academy of Dermatology” The document suggests finding a simpler, cheaper way to diagnose Uncombable Hair Syndrome.
October 2021 in “bioRxiv (Cold Spring Harbor Laboratory)” The Hair Cell Analysis Toolbox automates and improves the analysis of cochlear hair cells using machine learning.
10 citations
,
November 2016 in “International Journal of Cosmetic Science” A tough membrane between the outer and inner layers of human hair protects it from damage.
8 citations
,
January 2007 in “International Society of Hair Restoration Surgery” The forelock approach in hair transplants improves natural appearance by focusing hair density in one area.
36 citations
,
July 2004 in “Journal of Controlled Release” The dye quickly penetrates hair follicles, mainly through the gap, not the surrounding skin.
2 citations
,
August 2020 in “Clinical, Cosmetic and Investigational Dermatology” The hair-growth formula with L-cystine helps protect and grow hair cells.
2 citations
,
January 2004 in “PubMed” Conditioners with PQ-10 soften the flat part of hair cuticles but harden the edges.
March 1983 in “The Journal of the American Dental Association”
January 2005 in “Seibutsu Butsuri/Seibutsu butsuri” Chemical treatments damage hair more than UV exposure, making it thinner and less flexible.
7 citations
,
February 1998 in “Polymer journal” Keratin structure in hair is stable at pH 5-6 but disrupts between pH 6-7.
January 2005 in “Journal of Cutaneous Pathology” The hair erector muscle is involved in various skin conditions and disorders.
8 citations
,
December 2017 in “Small Ruminant Research” Variation in the TCHH gene affects wool curliness in sheep.
March 2026 in “Journal of Investigative Dermatology” 1 citations
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September 2016 in “Brain Behavior and Immunity” Hair cortisol levels can indicate stress and are affected by washing frequency, not cosmetic treatments.
January 2019 in “Proceedings for Annual Meeting of The Japanese Pharmacological Society” Nε-(carboxymethyl) lysine delays hair growth by blocking a key protein.
May 2024 in “Frontiers in medicine” A genetic mutation in the LIPH gene causes tightly curled hair that stops growing in some Japanese individuals.