September 2014 in “Journal of the American Academy of Dermatology” The girl likely has Loose anagen hair syndrome, which may improve on its own or with minoxidil.
A 5-year-old girl has sparse, dry, and brittle hair but is otherwise healthy.
November 2022 in “The journal of investigative dermatology/Journal of investigative dermatology” Linalool in personal care products may contribute to hair loss by damaging hair follicle stem cells and triggering harmful immune responses.
2 citations
,
July 2013 in “Acervo Digital da Universidade Estadual Paulista (Universidade Estadual Paulista)” The shampoo effectively defines and models curls while reducing frizz and volume.
Knocking out the FGF5 gene in sheep increased wool production and hair-follicle density.
7 citations
,
November 2004 in “International Journal of Cosmetic Science” Hair breaks differently when wet or dry and is affected by its condition and treatments like perms and bleaching.
4 citations
,
March 2021 in “Journal of Surfactants and Detergents” Shampoo B, which uses water-soluble silicone, is better at detangling hair in wet conditions due to its two-layer conditioning film.
January 2022 in “Consultant” July 2025 in “International Journal of Trichology” A 6-year-old boy's leg hair loss was due to friction from sitting cross-legged, and it usually resolves on its own.
4 citations
,
August 2023 in “Nature Communications” Mouse zigzag hair bends form due to a 3-day cycle of changes in hair progenitors and their environment.
16 citations
,
April 2017 in “ACM Transactions on Graphics” Light scatters differently from elliptical hair fibers than from circular ones, and a new model better predicts this behavior, especially for shiny highlights.
January 2016 in “Indian dermatology online journal” The patient has frontal fibrosing alopecia (FFA).
38 citations
,
July 1993 in “Journal of Investigative Dermatology” March 2005 in “Journal of the American Academy of Dermatology” Cosmetic treatments can replenish key amino acids in damaged hair, improving its strength and appearance.
28 citations
,
November 2019 in “Gene” The ITGB6 gene is important for tissue repair and hair growth, and mutations can lead to enamel defects and other health issues.
17 citations
,
September 2009 in “British Journal of Dermatology” Fragile hair in children is rarely linked to trichothiodystrophy (TTD).
May 2025 in “Skin Appendage Disorders” Frontal fibrosing alopecia can be diagnosed by examining facial areas and treated with specific medications to stop its progression.
139 citations
,
December 1998 in “The journal of investigative dermatology/Journal of investigative dermatology” K6hf is a unique protein found only in a specific layer of hair follicles.
1 citations
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January 2015 in “Bulletin of the Russian Academy of Sciences Physics” Hair tissue can help monitor environmental and public health risks.
97 citations
,
January 2005 in “Wear” Human hair and skin friction vary by ethnicity, hair type, and environmental conditions.
166 citations
,
April 2012 in “Journal of The American Academy of Dermatology” Mostly postmenopausal Caucasian women get Frontal Fibrosing Alopecia, which often includes eyebrow loss and has limited treatment success.
April 2023 in “World Journal Of Advanced Research and Reviews” Cosmetic products or emotional factors might contribute to Frontal Fibrosing Alopecia, and trichoscopy is useful for diagnosis.
12 citations
,
June 2006 in “Journal of Dermatological Science” Interleukin 6 helps hair grow.
July 2024 in “Iranian journal of pathology” Frontal fibrosing alopecia mainly affects women over 50, causing hair loss and specific skin changes.
13 citations
,
January 2001 in “Pediatric dermatology” A dark-haired Chinese girl had hair that looked banded under certain light but was normal under a microscope.
15 citations
,
December 1972 in “Journal of Investigative Dermatology” 4 citations
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November 2016 in “The Journal of Dermatology” Pili torti hair is fragile due to loose keratin filaments and weak disulfide bonds.
October 2020 in “International Journal of Research in Dermatology” The review suggests more research is needed to understand Frontal fibrosing alopecia, a condition causing hairline recession in postmenopausal women.
7 citations
,
April 2000 in “Mammalian Genome” A new mutation in mice causes crooked whiskers and messy hair.
17 citations
,
December 2010 in “Journal of Investigative Dermatology” Flightless I protein affects hair growth, with low levels delaying it and high levels increasing hair length in rodents.