New methods to classify curly hair types were developed based on shape and strength.
July 2007 in “Manuals in biomedical research” 7 citations
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May 1995 in “The journal of investigative dermatology/Journal of investigative dermatology” January 2006 in “DOAJ (DOAJ: Directory of Open Access Journals)” Loose anagen hair syndrome causes easily pulled, thin hair in kids but is harmless and temporary.
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.
6 citations
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January 2005 in “Han-guk hyeonmigyeong hakoeji/Applied microscopy” The 16th-century mummy's hair was well-preserved due to a calcium surface coat.
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.
21 citations
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June 2023 in “Proceedings of the National Academy of Sciences” Tightly curled scalp hair helps reduce heat from the sun, protecting against overheating.
16 citations
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June 2015 in “The journal of investigative dermatology/Journal of investigative dermatology” The enzyme DHHC13 is essential for healthy hair and skin, and its deficiency leads to hair loss and skin problems.
23 citations
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February 1993 in “Journal of Investigative Dermatology” March 1997 in “Medical Molecular Morphology” Zinc deficiency causes early scalp hair damage that recovers slower than skin symptoms.
5 citations
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January 2009 in “International Journal of Trichology” Two siblings had a rare hair condition with banded hair, which doesn't need treatment.
17 citations
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June 2011 in “The journal of investigative dermatology/Journal of investigative dermatology” The G60S Connexin43 mutation causes hair growth issues and poor hair quality in mice, similar to human ODDD patients.
A 5-year-old girl has sparse, dry, and brittle hair but is otherwise healthy.
48 citations
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August 1998 in “Developmental Biology” Deleting part of a gene in mice causes wavy hair and high pup loss.
September 2025 in “Cosmetics” Lipid content and structure affect water absorption in different hair types.
7 citations
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January 2017 in “Sub-cellular biochemistry/Subcellular biochemistry” 1 citations
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November 2003 in “Humana Press eBooks” AFM helps study hair surfaces for dermatology, cosmetics, and forensics.
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.
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.
1 citations
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May 1983 in “Acta dermato-venereologica” The hairpiece matted due to weathered hair after shampooing.
11 citations
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January 1977 in “Archives of dermatological research” Mouse tail skin has different keratinization near hair follicles and scales.
September 2023 in “Journal of the American Academy of Dermatology” 4 citations
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January 2020 in “Elsevier eBooks” Natural polymers can protect, repair, and promote hair regrowth.
33 citations
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October 1996 in “Journal of Investigative Dermatology”
17 citations
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June 2012 in “Journal of experimental zoology. Part B, Molecular and developmental evolution” Hair in mammals likely evolved from glandular structures, not scales.
1 citations
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February 2009 in “Journal of Investigative Dermatology” Lipase H is important for hair follicle function and shaping hair fibers.
2 citations
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July 2019 in “Indian dermatology online journal” A 17-year-old girl and her brothers have a rare hair condition with long eyelashes, thick eyebrows, and easily pluckable hair.
276 citations
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January 2005 in “International review of cytology” More research is needed to understand how hair keratins work and their role in hair disorders.
3 citations
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January 2020 in “JAAD Case Reports” A girl had two rare hair conditions that helped understand their overlap.