578 citations
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April 1993 in “Cell” TGFα gene mutation in mice causes abnormal skin, wavy hair, curly whiskers, and sometimes eye inflammation.
February 2024 in “Journal of Dermatological Science” Curved hair can develop when hair cells merge abnormally during growth.
33 citations
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August 2013 in “British Journal of Dermatology” Lack of small, fine hair on the front hairline is a key sign of frontal fibrosing alopecia.
May 2010 in “Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature” A mutation in the KRT74 gene causes woolly hair by affecting hair texture.
May 2026 in “Zenodo (CERN European Organization for Nuclear Research)” The herbal cream effectively smooths and straightens hair safely.
15 citations
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August 2020 in “Analytical chemistry” Hair lipids do not protect against humidity.
7 citations
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October 2019 in “Frontiers in bioengineering and biotechnology” Fusion proteins can protect hair from heat damage.
December 2023 in “Journal of molecular structure” Hair treatments and dehydration affect hair's lipid and protein behavior, influencing its flexibility and appearance.
Acidic sandy clay damages archaeological hair the most, while dry conditions preserve but make it brittle; silicone oil can help keep the hair flexible.
2 citations
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July 2012 in “PubMed” Ceramide-rich liposomes can effectively repair and strengthen damaged hair.
7 citations
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May 1988 in “International Journal of Dermatology” The patient's hair has unique structural differences with alternating bright and dark bands.
107 citations
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October 2014 in “PeerJ” Hair's molecular structure is mostly consistent, but genetic differences affect lipid types, which could help diagnose diseases.
April 2018 in “Journal of Investigative Dermatology” Fat under the skin can help hair grow longer, darker, and increase cell growth.
7 citations
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November 2004 in “International Journal of Cosmetic Science” Hair breaks differently when wet or dry and is affected by its condition and treatments like perms and bleaching.
9 citations
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May 2021 in “JEADV. Journal of the European Academy of Dermatology and Venereology/Journal of the European Academy of Dermatology and Venereology” Topical minoxidil may help treat a rare genetic hair condition with no fully effective treatments yet.
4 citations
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April 2019 in “Cosmetics” Hair stiffness is higher when it has more para-like cortical cells.
September 2014 in “Daehan miyong hakoeji” Adding 2% glycerin or hyaluronic acid to permanent wave treatments reduces hair damage, with hyaluronic acid being more effective.
1 citations
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January 2018 in “Acta dermato-venereologica” A teenager's hair with alternating white and dark bands, known as Pili annulati, is a genetic condition that is usually harmless and often considered attractive.
December 2022 in “The Turkish Journal of Pediatrics” Hair examination helps diagnose rare neurological diseases in children.
2 citations
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March 2009 in “Hair transplant forum international” Men generally have a certain thickness of hair at their hairline.
May 2026 in “Journal of Investigative Dermatology”
3 citations
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January 2012 in “Wageningen Academic Publishers eBooks” Hair health depends on various factors and hair loss can significantly affect a person's well-being; understanding hair biology is key for creating effective hair care treatments.
A wavy two-layer closure in hair transplants makes scars nearly invisible for most patients.
16 citations
,
January 1977 January 2004 in “Nederlands Tijdschrift voor Dermatologie & Venereologie” Female pattern hair loss causes thinning hair on top of the scalp, treatable with limited success.
1 citations
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June 2022 in “Tidsskrift for Den norske legeforening” A young boy's uncombable hair is due to a rare genetic condition that usually improves over time.
Human hair can almost fully recover its structure within about 1,000 minutes after being stretched.
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.