10 citations
,
June 2019 in “Cosmetics” Mixed-race individuals have hair with varied shapes and more root damage.
February 2023 in “European biophysics journal” October 1999 in “Inpharma weekly” 95 citations
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October 2007 in “International Journal of Dermatology” A new method accurately classifies hair types, showing global hair diversity.
June 2024 in “Annals of Medicine and Surgery” A 23-year-old Syrian woman has two rare hair disorders, and avoiding hair treatments plus using vitamins and minoxidil may help.
January 2024 in “International Journal of Trichology” Matted hair should not be judged as a sign of mental instability; proper diagnosis and gentle care are key.
28 citations
,
July 1980 in “British Journal of Dermatology” The hair disorder was caused by abnormal protein formation, making hair easily damaged.
July 2009 in “International Journal of Cosmetic Science” Japanese women's curved hair has an uneven internal structure and varied amino acid composition.
18 citations
,
September 1994 in “Clinical and Experimental Dermatology” Localized trichorrhexis nodosa is a hair condition where hair becomes fragile and breaks easily due to damage.
12 citations
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January 2013 in “Indian dermatology online journal” The document reports a unique case of woolly hair with a combination of conditions not previously seen together.
Frizzy hair is fragile and can lead to hair loss and damage if not properly cared for.
2 citations
,
March 2024 in “Pediatric Dermatology” Two siblings have a rare hair condition caused by a new genetic variant.
1 citations
,
June 2023 in “Journal of applied crystallography” The technique showed that human hair has two main parts, with 68% being rigid and the rest flexible, and water swelling affects its structure.
13 citations
,
October 2008 in “PubMed” Japanese women's curved hair has an uneven internal structure and varying amino acid composition.
40 citations
,
November 1966 in “Archives of Dermatology” Trichorrhexis nodosa is mainly caused by hair trauma and improves with gentler hair care.
September 2014 in “Journal of the American Academy of Dermatology” The girl likely has Loose anagen hair syndrome, which may improve on its own or with minoxidil.
January 2009 in “Chinese journal of Clinical Medicine”
16 citations
,
June 2005 in “Clinical and Experimental Dermatology” Twisted hair is rare in severe anorexia nervosa, found in only 2 out of 30 patients.
1 citations
,
March 2005 in “International Journal of Cosmetic Science” Twisting hair weakens it, but strength can be recovered at low twist levels.
17 citations
,
February 2015 in “Experimental Dermatology” Keratins are crucial for hair strength, and mutations in certain keratin genes cause hair disorders.
15 citations
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January 2011 in “International journal of trichology” Using a hot iron on wet hair can cause dry, brittle hair with air bubbles inside.
February 2024 in “Journal of Dermatological Science” Curved hair can develop when hair cells merge abnormally during growth.
254 citations
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January 2007 in “Chemical Society Reviews” Hair is a complex protein fiber with unique properties useful for developing hair products.
December 2025 in “Clinical Case Reports” Netherton syndrome causes skin and hair issues, confirmed by "bamboo hair" under dermoscopy, with no cure but managed with topical treatments.
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 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.
April 2012 in “Informa Healthcare eBooks” Tight hairstyles can cause temporary or permanent hair loss, with less hair seen under a microscope in later stages.
December 2005 in “Belarusian State Pedagogical University repository (Belarusian State Pedagogical University)” Hair tourniquet syndrome can cause serious harm and may indicate child abuse.
July 2018 in “Elsevier eBooks” Stopping tight hairstyles can prevent and reduce traction alopecia.
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.