17 citations
,
September 2005 in “International Journal of Dermatology” African hair is more fragile due to its unique shape and internal structure.
4 citations
,
May 2024 in “Cytotechnology” 3 citations
,
June 2001 in “Scientific American” April 2022 in “Journal of Investigative Dermatology” Androgenetic alopecia causes hair thinning due to increased androgen activity, treatable with minoxidil and finasteride.
1 citations
,
April 2016 in “Journal of The American Academy of Dermatology” The study concludes that Loose Anagen Hair Syndrome is a benign condition that usually improves with age but can be hard to diagnose and stressful for the family.
8 citations
,
November 2022 in “International Journal of Cosmetic Science” Human hair varies widely and should be classified by curl type rather than race.
30 citations
,
July 2000 in “PubMed” Hair has unevenly distributed proteins and lipids, with lipids mainly in the cuticle and proteins in the cortex and medulla.
7 citations
,
July 2004 in “International Journal of Cosmetic Science” Different hair types from various ethnic groups affect hair shine due to characteristics like thickness and shape.
1 citations
,
August 2025 in “Journal of Investigative Dermatology” Genetic studies on hair traits can improve understanding of health and disease.
January 2020 in “Clinical dermatology open access journal” Changing certain hairstyles can prevent worsening hair loss in Mexican women.
9 citations
,
January 1989 in “Journal of Small Animal Practice” Abyssinian cats can have a hair abnormality that makes their coat look rough and dull.
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.
May 2006 in “Dermatologic Surgery” Most nonbald men's multi-hair follicles are naturally positioned perpendicular to a line from the scalp's crown, which is important for natural-looking hair transplants.
73 citations
,
June 2006 in “Animal genetics” The FGF5 gene determines hair length in dogs.
8 citations
,
July 2019 in “The journal of investigative dermatology/Journal of investigative dermatology” Curly hair is mechanically different from straight hair and may need new testing methods.
January 2007 in “International Society of Hair Restoration Surgery” 15 citations
,
August 2010 in “Annals of saudi medicine/Annals of Saudi medicine” Hair tourniquet syndrome is a rare condition where hair wraps around an infant's body part, needing quick removal to prevent damage.
June 2026 in “JAAD Case Reports” Scurvy, caused by vitamin C deficiency, can occur in people with restrictive diets and can be diagnosed by twisted hair shafts.
24 citations
,
January 1969 in “Archives of Dermatological Research” Hair malformations may occur due to timing issues in hair development.
81 citations
,
March 2006 in “Journal of Investigative Dermatology” Mutations in the DSG4 gene cause specific hair and scalp issues.
1 citations
,
January 2024 in “Annals of Dermatology” Examining hair shape can help predict Alopecia Areata's progression.
2 citations
,
January 2005 Men with a certain type of hair loss (vertex type AGA) may have higher levels of bad fats (triglycerides) and lower levels of good cholesterol (HDL), suggesting they could be at risk for high fat levels in the blood (hyperlipidemia).
October 2017 in “Chinese Journal of Dermatology”
60 citations
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April 2018 in “Clinical, cosmetic and investigational dermatology” Tight hairstyles and chemical relaxers can cause hair loss known as traction alopecia.
October 2024 in “Российский физиологический журнал им И М Сеченова” Understanding barbering in lab rodents is important for animal welfare and research accuracy.
4 citations
,
April 2018 in “The journal of pediatrics/The Journal of pediatrics” A 6-year-old girl's inability to grow her hair long was due to Loose Anagen Hair Syndrome, which causes hair to shed easily and may improve with age.
April 2023 in “Journal of Dermatological Treatment” Tofacitinib helped regrow hair in a teen with a unique pattern of alopecia areata.
24 citations
,
January 2011 in “International Journal of Trichology” Light microscopy is useful for diagnosing different hair disorders.
April 2018 in “Journal of Investigative Dermatology”
August 2024 in “International Journal of Dermatology” New therapies and treatments for hair disorders, especially in curly hair, show promise.