4 citations
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January 2015 in “Sen'i Gakkaishi” Hair and wool strength is affected by the number and type of bonds in their protein structures, with hair having more protein aggregates than wool.
January 2022 in “Acta dermatovenerologica Alpina, Pannonica et Adriatica (Tiskana izd.)” Uncombable hair syndrome causes frizzy hair and can affect the nervous system, eyes, and ears, often co-occurring with other hair, skin, nail, and teeth conditions, and is linked to three specific gene mutations.
134 citations
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December 2018 in “Dermatology and Therapy” Some vitamins and minerals like vitamin D and iron can help with certain types of hair loss, but more research is needed for others.
4 citations
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January 2016 in “Dermatology online journal” Using bacitracin zinc and selenium sulfide one after the other can temporarily turn white hair yellow.
July 2008 in “International Society of Hair Restoration Surgery” Total Body Mega Formula supplement can cause severe hair loss due to selenium toxicity.
9 citations
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October 2010 in “Journal of the American Academy of Dermatology” Iron deficiency might cause hair loss, but better testing is needed.
September 1992 in “Journal of Dermatological Science” 5 citations
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December 2020 in “International journal of biological macromolecules” Treatments improved hair surface and scale structure but didn't increase certain bonds in the hair cortex.
2 citations
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August 2022 in “Clinical Case Reports” A 17-year-old girl had severe, on-and-off hair loss, likely due to COVID-19. She was treated with Vitamin D3, biotin, and other supplements, and saw some improvement within a month.
4 citations
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June 1980 in “American Journal of Clinical Nutrition” Malnutrition can change hair color due to altered copper and zinc levels.
1 citations
,
October 2021 in “Journal of Investigative Dermatology” 1 citations
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January 2013 in “PubMed” Permanent wave treatment with thioglycolic acid changes hair structure by altering disulfide bonds.
2 citations
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January 1997 in “Journal of Clinical Biochemistry and Nutrition” Biotin deficiency causes severe hair loss and weight reduction in germ-free mice.
2 citations
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January 2004 in “AIP conference proceedings” Hair analysis can help screen for serious diseases like cancer and osteoporosis.
30 citations
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July 2000 in “PubMed” Hair has unevenly distributed proteins and lipids, with lipids mainly in the cuticle and proteins in the cortex and medulla.
January 2012 in “International Journal of Trichology” Two siblings have a rare genetic condition causing curly, coarse hair.
4 citations
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January 2025 in “The Journal of Cell Biology” Ceramide Synthase 4 is crucial for maintaining hair follicle stem cells and preventing hair loss.
May 2010 in “International Journal of Cosmetic Science” Mercaptans make hair more prone to damage, with reduced hair being more affected than permed hair.
1 citations
,
March 1958 in “PubMed” January 2026 in “International Journal of Biological Macromolecules”
1 citations
,
July 2012 in “EFSA journal” KF2BL20 does not have proven benefits for maintaining normal hair.
December 2019 in “Jordan Medical Journal” Hair and scalp exams can predict zinc deficiency in children.
February 2025 in “Journal of Investigative Dermatology” The ZIP13 variant is linked to abnormal hair quality.
170 citations
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May 1979 in “The journal of pediatrics/The Journal of pediatrics” Two sisters with rickets and hair loss had a genetic issue with vitamin D processing, and only improved when given phosphorus supplements.
September 2022 in “International Journal of Health Sciences (IJHS)” Low zinc levels may contribute to hair loss due to increased oxidative DNA damage.
3 citations
,
September 2016 in “Clinical, cosmetic and investigational dermatology” Sphinganine can reduce hair loss and improve scalp health.
January 2023 in “Indian Dermatology Online Journal” Uncombable hair syndrome is linked to Zellweger syndrome.
January 2009 in “International Journal of Trichology” Dr. Shyam B Verma encourages more scientific research on hair disorders and criticizes the unscientific hair care market in India.
2 citations
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September 2004 in “International Journal of Cosmetic Science” Hair quality is genetically determined and linked to its composition and strength.
March 2026 in “Journal of the mechanical behavior of biomedical materials/Journal of mechanical behavior of biomedical materials” Bleaching and UV exposure significantly damage hair.