24 citations
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December 1990 in “Pediatric Dermatology” Tight hairstyles like ponytails may cause hair casts by affecting scalp circulation and causing inflammation.
July 2024 in “Federal Practitioner” Act quickly to prevent permanent hair loss from tight hairstyles.
April 2021 in “Annales de Dermatologie et de Vénéréologie - FMC” Biphasic alopecia often leads to permanent hair loss and its progression varies widely among individuals.
7 citations
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January 2016 in “Dermatology online journal” Persistent pulling on hair can cause permanent hair loss.
1 citations
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July 2008 in “Expert Review of Dermatology” Normal hair thickness varies by scalp area and a mix of hair thicknesses is typical in healthy individuals.
15 citations
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January 1971 in “Journal of animal science/Journal of animal science ... and ASAS reference compendium” Hair analysis can't determine ponies' calcium and phosphorus levels; use soil and feed tests instead.
95 citations
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January 2009 in “Journal of Biomedical Optics” Nanoparticles penetrate hair follicles better when their size matches the cuticula thickness.
63 citations
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October 1972 in “British Journal of Dermatology” Women with thinning hair have thinner hair strands than women without hair loss.
2 citations
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March 2009 in “Hair transplant forum international” Men generally have a certain thickness of hair at their hairline.
December 2024 in “Skin Appendage Disorders” Traction alopecia reduces hair density and thickness; proper hair care can help prevent it.
January 2024 in “Medycyna Weterynaryjna” Horse breed significantly affects skin and hair thickness.
Hair thickening procedures can help people with early hair loss when combined with proper scalp and hair care.
4 citations
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November 2004 in “Clinical and Experimental Dermatology” Hair length and thickness are related, with thickness peaking at about a quarter of the hair's maximum length.
January 2018 in “프로그램북(구 초록집)” Scalpoo® shampoo effectively increases hair thickness and reduces shedding.
December 2019 in “C&EN Global Enterprise” Thicker hair isn't always stronger.
29 citations
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December 2011 in “British Journal of Dermatology” A new hair treatment with caffeine and other ingredients makes hair thicker and less likely to break.
41 citations
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May 2001 in “PubMed” Different thicknesses of hair strands can indicate the severity of hair thinning.
Use gentle products and nourishing masks to keep thin hair strong and voluminous.
2 citations
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April 2023 in “Archives of Aesthetic Plastic Surgery” The phototrichogram is better for measuring hair thickness.
31 citations
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February 2020 in “BioMed Research International” Thai people's hair density decreases with age and varies by scalp area, but hair thickness stays the same regardless of age or scalp area.
January 1961 in “The Journal of Anthropological Society of Nippon” Hair form in mixed-blood families varies due to hereditary twist-knots and pigment formation.
4 citations
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February 2018 in “Journal of Cosmetic Dermatology” Platelet-rich plasma injections made hair thicker for both men and women, with a greater effect in women.
December 2025 in “Russian Journal of Skin and Venereal Diseases” Hair follicles are thinner in alopecia patients, especially in alopecia areata.
10 citations
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July 2017 in “Archives of Plastic Surgery” Hair thickness decreases from the upper to lower areas of the back of the head, affecting hair transplant results.
46 citations
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April 2009 in “Journal of Dermatological Case Reports” Researchers established normal hair and scalp characteristics for healthy women using trichoscopy.
April 2025 in “Cosmetics” The shampoo improves hair thickness, density, and reduces hair loss.
1 citations
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May 2016 in “Hair transplant forum international” The best dot density for scalp tattoos gives women with hair loss a natural look and high satisfaction.
December 2019 in “Ukrainian Journal of Veterinary and Agricultural Sciences” Donkey and horse hair have different microscopic structures, which can help tell them apart.
13 citations
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January 2001 in “Pediatric dermatology” A dark-haired Chinese girl had hair that looked banded under certain light but was normal under a microscope.
November 2014 in “British Journal of Dermatology” Hair loss is due to thinner hairs, not less hairs; hair diameter indicates balding progression and treatment effectiveness.