64 citations
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March 2005 in “Journal of Investigative Dermatology” Brain-Derived Neurotrophic Factor (BDNF) slows down hair growth and promotes hair follicle regression.
April 2023 in “Journal of Investigative Dermatology” Muscle around hair follicles controls hair loss by releasing a signal that causes cell death.
April 2017 in “Journal of Investigative Dermatology” A virus protein can activate a pathway that may lead to abnormal hair follicle development.
12 citations
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November 1987 in “Pediatric dermatology” Four children had unmanageable pale blond hair due to uncombable-hair syndrome.
4 citations
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May 2024 in “Cytotechnology” 2 citations
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January 2018 in “Indian dermatology online journal” A homeopathic antidandruff shampoo caused severe hair matting in a girl.
March 2026 in “Scholarly Horizons University of Minnesota Morris Undergraduate Journal” Hair in art is often seen as repulsive when detached from the body.
October 2022 in “Hair Transplantation” Temporary scalp trichopigmentation creates a shaved hair look on the scalp using pigments that fade over time.
41 citations
,
November 2013 in “Experimental Dermatology” Leptin, a hormone, is important for starting hair growth.
July 2022 in “Zenodo (CERN European Organization for Nuclear Research)” July 2022 in “Zenodo (CERN European Organization for Nuclear Research)” 6 citations
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July 2019 in “Journal of the American Academy of Dermatology” 
A young athlete's fragile hair condition improved by cutting hair and using gentle shampoo.
1 citations
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July 2017 in “Skin appendage disorders” A 9-year-old Hispanic girl has Uncombable Hair Syndrome, which may improve with age and biotin treatment.
Neuropeptides affect hair growth and could be used to control it.
1 citations
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February 2004 in “Medical Hypotheses” Certain cultural hair practices might cause baldness by affecting natural hair oils and stem cell delivery to hair follicles.
1 citations
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December 1965 in “PubMed” 
96 citations
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October 2000 in “The FASEB Journal” The p75 neurotrophin receptor is important for hair follicle regression by controlling cell death.
April 2025 in “Brazilian Journal of Hair Health” The Extra Gentle brush reduces hair breakage and soothes sensitive scalps.
April 2012 in “Development” Rac1 is crucial for normal hair structure and pigmentation.
7 citations
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January 2012 in “International journal of trichology” Permanent hair removal with lasers may cure itchy black hair bristles on the back.
11 citations
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February 2002 in “International Journal of Cosmetic Science” Recent findings show that hair growth and color are controlled by a complex network of signals in the hair follicle.
158 citations
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December 2002 in “Development” Msx2-deficient mice experience irregular hair growth and loss due to disrupted hair cycle phases.
1 citations
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May 2002 in “Therapeutische Umschau” Children's hair diseases include compulsive hair-pulling, easily plucked hair, scalp fungal infections, and head lice, each requiring specific diagnosis and treatment.
6 citations
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March 2015 in “Journal of The American Academy of Dermatology” Hair dye can make it hard to diagnose scalp conditions correctly.
6 citations
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February 2016 in “International Journal of Dermatology” The true cause of hair suddenly turning white is still unknown.
September 2016 in “Journal of dermatological science” TSC2 is crucial for proper hair follicle development and patterning.
August 2023 in “Zenodo (CERN European Organization for Nuclear Research)”