101 citations
,
July 1985 in “Journal of the American Academy of Dermatology” Biotin improved hair growth and combability in one child with uncombable hair syndrome.
11 citations
,
September 2012 in “The journal of investigative dermatology/Journal of investigative dermatology” A mutation in the KRT71 gene causes a hair disorder by disrupting hair follicle structure and texture.
125 citations
,
February 1971 in “Biochemistry” Specific cross-linkages help make hair proteins stable and strong.
14 citations
,
December 2019 in “International Journal of Phytocosmetics and Natural Ingredients” The conditioner with Spirulina and Ascophyllum extracts made hair shinier and easier to comb.
Hair can't be as strong as Rapunzel's because it's impractical to scale up due to defects.
August 2003 in “Dermatologic Surgery” Craig Ziering created a system to classify scalp hair patterns, important for improving hair restoration surgery results.
August 2025 in “Journal of Applied Pharmaceutical Research” F4 and F6 hair gels showed promise for improving hair care but need more testing.
11 citations
,
September 1997 in “Archives of Dermatology” Reduced androgens linked to kinky hair disorder and hair loss; 5a-reductase inhibitors may help.
February 2019 in “International Journal of Dermatology and Clinical Research” Nε-(carboxymethyl) lysine delays hair growth by blocking a key protein.
4 citations
,
May 2020 in “The journal of pediatrics/The Journal of pediatrics” A boy with monilethrix has brittle hair that breaks easily due to a genetic condition, which might improve by puberty.
4 citations
,
May 2011 in “Journal of The American Academy of Dermatology” Certain hairstyles increase the risk of scalp and hair disorders in African American girls.
Hair keratin treatments can be harmful, potentially causing health issues like skin reactions and cancer.
1 citations
,
March 1958 in “PubMed” 26 citations
,
August 2014 in “Veterinary Dermatology” Sphynx cats have abnormal hair follicles and keratinization affecting their skin.
Chemical treatments weaken hair's thermal stability and structure.
February 2022 in “International journal of research in dermatology” The document concludes that proper diagnosis and treatment of hair shaft disorders require understanding their unique causes and avoiding hair-damaging practices.
3 citations
,
May 2017 in “BMJ Case Reports” A 15-year-old boy's skin and hair condition worsened due to improper treatment, leading to severe health issues.
1 citations
,
January 1989 in “Springer eBooks” 2 citations
,
January 2022 1 citations
,
January 2020 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.
45 citations
,
January 2012 in “Experimental Dermatology” Human hair follicles switch between active and resting phases unpredictably.
May 2024 in “Frontiers in medicine” A genetic mutation in the LIPH gene causes tightly curled hair that stops growing in some Japanese individuals.
45 citations
,
February 2002 in “International Journal of Cosmetic Science” Ceramide helps protect African–American hair from breakage.
January 2026 in “Psychoneuroendocrinology” Lye relaxers don't significantly change hair cortisol levels.
March 2016 in “RepositóriUM (Universidade do Minho)” Molecular dynamics simulations help understand keratin's properties and predict hair's response to treatments.
10 citations
,
April 2007 in “PubMed” Coordinated gene activities are crucial for normal hair growth.
May 2010 in “Journal of Investigative Dermatology”