July 2009 in “International Journal of Cosmetic Science” Japanese women's curved hair has an uneven internal structure and varied amino acid composition.
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.
4 citations
,
July 2010 in “International Journal of Cosmetic Science” Curved human hair has different structures on its convex and concave sides.
49 citations
,
June 2004 in “Philosophical Transactions of the Royal Society A Mathematical Physical and Engineering Sciences” Human hair becomes weaker and stretches more easily at higher temperatures.
13 citations
,
October 2008 in “PubMed” Japanese women's curved hair has an uneven internal structure and varying amino acid composition.
22 citations
,
January 1985 Water makes hair more flexible, especially the outer layer.
January 2009 in “Nihon Keshouhin Gijutsushakaishi/Journal of S C C./Nihon Keshouhin Gijutsushakai kaishi” Curved human hair has different structures on each side, which might cause its shape and is similar to wool.
2 citations
,
September 2023 in “bioRxiv (Cold Spring Harbor Laboratory)” Tissue stiffness is influenced by contractility, which suppresses collagen breakdown.
January 2006 in “Seibutsu Butsuri” Curly and straight hair differ in how their internal fibers are arranged.
10 citations
,
January 2002 in “Nihon Keshouhin Gijutsushakaishi/Journal of S C C./Nihon Keshouhin Gijutsushakai kaishi” The cuticle significantly contributes to hair stiffness, making up about 60% of the total bending stress.
August 2020 in “Textile research journal” The model helps understand how wool fiber structure affects its strength and flexibility.
62 citations
,
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.
4 citations
,
January 2015 in “Sen'i Gakkaishi” Hair and wool strength is affected by the number and type of bonds in their protein structures, with hair having more protein aggregates than wool.
April 2016 in “Journal of The American Academy of Dermatology” Some blood pressure medications are linked to a higher risk of skin cancer.
April 2016 in “Journal of The American Academy of Dermatology” Finasteride and SSRIs together increase impotence and low libido risk in men.
3 citations
,
December 2021 in “Proteins” Wool fiber curliness is linked to the presence of certain proteins and K38.
2 citations
,
April 2019 in “Experimental Dermatology” Hair follicles respond differently to pulling forces in various regions.
July 2024 in “Journal of Investigative Dermatology” Mechanical tension worsens keloid scars by activating inflammation and fibrosis pathways.
28 citations
,
March 2014 in “Biological reviews/Biological reviews of the Cambridge Philosophical Society” The document concludes that hair curvature can be explained by the growth patterns caused by the shape and separation of cells in the hair follicle and is affected by specific molecular pathways.
August 2025 in “bioRxiv (Cold Spring Harbor Laboratory)” Root hair stiffness is mainly influenced by tip compression and turgor pressure.
85 citations
,
October 2007 in “International Journal of Dermatology” Curly hair shape is due to uneven growth patterns in the hair follicle.
February 2026 in “The European Physical Journal E” Root hair growth mechanics depend on turgor pressure and cell wall properties.
1 citations
,
July 2024 in “International Journal of Cosmetic Science” Hair curvature is the main factor affecting curly hair manageability and product preferences.
13 citations
,
April 2023 in “Biochemical Society Transactions” Tissue stiffness helps shape how organisms develop.
Different treatments change the strength and flexibility of human hair.
4 citations
,
August 2018 in “Journal of Cosmetic Dermatology” Wound tension after hair transplant surgery increases with strip size and is higher on the sides, affecting scarring.
19 citations
,
January 2009 in “International review of cell and molecular biology” Hair's strength and flexibility come from its protein structure and molecular interactions.
1 citations
,
December 2022 in “Skin Research and Technology” The technique helps measure how hair styling ingredients affect hair's stiffness and flexibility.
January 2024 in “Indian Journal of Pharmaceutical Sciences” Relaxing certain muscles might straighten curly hair.
Curly hair may be caused by a muscle contraction, and muscle relaxants might help treat it.