1 citations
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January 2025 in “International Journal of Cosmetic Science” Age-related hair curvature increases due to internal structural changes from grooming.
16 citations
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October 1992 in “Journal of cutaneous pathology” Bubble hair deformity may be caused by hair shaft trauma and can improve with gentle hair care.
4 citations
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June 2021 in “Scientific Reports” Hair fiber shape and curvature are not significantly linked when ancestry is considered.
19 citations
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August 2013 in “Facial Plastic Surgery Clinics of North America” Children's hairlines change shape as they grow, with women often developing a widow's peak and men's hairlines becoming more convex and possibly balding at the temples, influenced by genetics and hormones.
50 citations
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March 2001 in “Clinics in dermatology” Human hair is complex and grows in cycles starting from embryonic life.
35 citations
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September 2003 in “Archives of dermatology” Tiger tail bands in hair are caused by wavy hair fibers with melanin, unlike straight fibers in normal hair.
April 2017 in “Journal of Dermatological Science” Asymmetric hair follicle differentiation causes the unique shape of kinky hair.
2 citations
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May 2004 in “SKINmed/Skinmed” Proper shaving techniques and treatments can help prevent and manage ingrown hairs and inflammation in people with curly hair.
6 citations
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June 1981 in “PubMed” Whisker hair in young people might predict severe future hair loss.
6 citations
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January 2021 in “Journal of the mechanics and physics of solids/Journal of the Mechanics and Physics of Solids” The model shows that factors like follicle shape and stiffness are key for hair growth and anchoring.
November 2024 in “Journal of Microscopy” Human hair varies in structure based on curl type, with high curl hair showing the most differences.
20 citations
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July 2005 in “Experimental dermatology” The fuzzy gene is crucial for controlling hair growth cycles.
62 citations
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December 2008 in “Journal of structural biology” Hair curvature in Japanese people is linked to specific cell types and filament arrangements in the hair cortex.
23 citations
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December 1991 in “Annals of the New York Academy of Sciences” Balding scalps slow down hair growth.
February 2019 in “PubMed” The research found that twisting hair fibers can show changes in stiffness and damage, and help tell apart different hair treatments.
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.
August 2025 in “bioRxiv (Cold Spring Harbor Laboratory)” Root hair stiffness is mainly influenced by tip compression and turgor pressure.
August 2024 in “Biophysics Reviews” Mammal hairs have different internal structures.
January 2025 in “Animal Science Journal” Golden takin's hair structure is adapted to maintain body temperature in harsh winters.
48 citations
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July 1993 in “Archives of Dermatological Research” Merkel cells are abundant in facial vellus hair follicles, especially during the anagen phase.
17 citations
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July 1977 in “International Journal of Dermatology” Proper shaving techniques and specific topical treatments can help manage pseudofolliculitis barbae.
17 citations
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November 1967 in “American Journal of Anatomy” Hairless mice have longer hair follicles and abnormal structures during the catagen phase.
1 citations
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January 2024 in “Annals of Dermatology” Examining hair shape can help predict Alopecia Areata's progression.
3 citations
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December 2013 in “Journal of Dermatology” Scanning electron microscopy revealed four distinct hair root shapes in alopecia areata, suggesting a less invasive diagnostic method.
7 citations
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October 1963 in “Textile Research Journal” Merino wool fibers change shape with moisture, while human hair shape stays the same.
65 citations
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May 2006 in “Journal of Structural Biology” Hair curliness is due to uneven distribution of different cortices within the hair fiber.
22 citations
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January 1985 Water makes hair more flexible, especially the outer layer.
96 citations
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February 2002 in “Journal of the American Academy of Dermatology” Pseudofolliculitis barbae is a chronic skin condition affecting mainly African American and Hispanic individuals, caused by shaving tightly curled hair, and managed by prevention and treatment but not curable.
1 citations
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August 2015 in “PubMed” Human hair's strength comes from a honeycomb-like structure and macrofibrils.
September 2023 in “Cells tissues organs” Mice skin matures by day 200, leading to aging signs like curved hair follicles and white hairs due to changes in skin stem cells.