February 2026 in “International Journal of Homoeopathic Sciences” Plica Polonica is a rare hair disorder causing severe matting, managed by detangling or cutting, and prevented with regular hair care.
January 2026 in “Journal of Cosmetic Dermatology” Microneedling can weaken hair in some AGA patients.
January 2025 in “Case Reports in Dermatological Medicine” Exosome therapy improved hair growth and quality in a child with hair issues.
57 citations
,
November 1987 in “Pediatric Dermatology” Children's hair grows in different types from before birth through puberty, with growth rates and characteristics varying by age, sex, and race.
Loose anagen hair syndrome in children may improve with age, but treatment results vary.
7 citations
,
July 2019 in “International Journal of Molecular Sciences” PGA-4HGF may help treat hair loss by activating hair growth pathways and extending the hair growth phase.
3 citations
,
October 2007 in “Expert Review of Dermatology” Hair ages due to various factors and treatments like minoxidil and finasteride can help, but more research and better public awareness are needed.
8 citations
,
February 2017 in “Archives of Dermatological Research” Intense pulsed light treatment effectively reduces underarm hair by making hair follicles smaller and extending their resting phase.
33 citations
,
January 2006 in “Journal of Dermatological Science” A long-acting Vitamin C derivative helps hair grow by stimulating cells and increasing growth factors.
June 2008 in “British Journal of Dermatology” Herpes gestationis is linked to certain antigens, atopic eczema affects T cell populations and may be eased by breastfeeding, higher doses of anti-androgen treatment can improve androgenic alopecia, topical minoxidil increases hair thickness, long-term methotrexate therapy can cause liver fibrosis in psoriasis patients, and Lichen Sclerosus et Atrophicus patients aren't at higher risk for autoimmune disorders.
37 citations
,
October 2015 in “PeerJ” Perming significantly changes hair's molecular structure, while shampoo and conditioner do not.
4 citations
,
January 2022 in “The journal of investigative dermatology/Journal of investigative dermatology” A faulty KLHL24 gene leads to hair loss by damaging hair follicle stem cells.
22 citations
,
August 2020 in “Cells” TGM3 is important for skin and hair structure and may help diagnose cancer.
47 citations
,
September 2004 in “Journal of Biological Chemistry” Hoxc13 regulates specific hair protein genes on mouse chromosome 16.
19 citations
,
December 2015 in “Journal of Investigative Dermatology” The protein p53 directly reduces the production of Keratin 17, a skin and hair protein, in rats with radiation dermatitis.
75 citations
,
April 2000 in “Developmental Dynamics” Whn is essential for hair growth, and its malfunction causes hair loss.
96 citations
,
January 2013 in “International Journal of Trichology” Trichoscopy is a useful, non-invasive way to diagnose different types of hair loss.
36 citations
,
April 2010 in “The journal of investigative dermatology/Journal of investigative dermatology” Canine hair follicles have stem cells similar to human hair follicles, useful for studying hair disorders.
25 citations
,
December 2008 in “Journal of Dermatological Case Reports” In vivo reflectance confocal microscopy is useful for evaluating hair shaft diseases but needs improvement for deeper hair follicle issues.
78 citations
,
May 2012 in “Journal of Investigative Dermatology” A specific gene mutation causes woolly hair and hair loss.
1 citations
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December 2023 Hair grows in cycles and changes with age, starting from fetal development.
28 citations
,
October 2013 in “Cornea” Scientists have made progress in creating replacement teeth, hair, and glands that work, which could lead to new treatments for missing teeth, baldness, and dryness conditions.
86 citations
,
October 2005 in “Experimental Dermatology” The Foxn1 gene mutation causes hairlessness and immune system issues, and understanding it could lead to hair growth disorder treatments.
13 citations
,
January 2012 in “International journal of trichology” The study found that hair fragility in Pili annulati may be caused by cavities and damage within the hair shafts.
May 2026 in “Frontiers in Cell and Developmental Biology” Hair follicle organoids can help study hair biology and disorders but need improvements for wider use.
86 citations
,
May 2002 in “Journal of Investigative Dermatology” A new keratin, hK6irs1, is found in all layers of the hair follicle's inner root sheath.
55 citations
,
November 2018 in “American journal of human genetics” Mutations in the LSS gene cause a rare type of hereditary hair loss.
February 2026 in “Frontiers in Medicine” Oral minoxidil improved hair loss more than oral dutasteride.
16 citations
,
July 2016 in “Veterinary Dermatology” Dermoscopy is useful for diagnosing hair loss patterns in dogs.
Dermoscopy is useful for diagnosing hair loss patterns in dogs.