September 2015 in “The European physical journal. E, Soft matter and biological physics/The European physical journal. E, Soft matter” Longer time setting curls overnight leads to better curl retention.
March 2018 in “Journal of Experimental Biology” Hair curliness is caused by the arrangement and length of two different cell types.
2 citations
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July 2013 in “Acervo Digital da Universidade Estadual Paulista (Universidade Estadual Paulista)” The shampoo effectively defines and models curls while reducing frizz and volume.
2 citations
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March 2014 in “Dermatologic Clinics” The editor suggests removing "race" and "ethnicity" from dermatology and creating tools to objectively assess skin color and hair texture.
October 2012 in “한국미용학회지” For best curls and hair health, use keratin and ceramide after rinsing, or skip rinsing for stable curls.
1 citations
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July 1935 in “Nature” Animal hair can curl tightly on its own, especially in foxes, due to changes in keratin.
17 citations
,
November 2013 in “Clinical and experimental dermatology” Acitretin therapy may cause hair to repigment and curl.
2 citations
,
September 2010 in “Journal of the Korea Academia-Industrial cooperation Society” Using 2% collagen in perms reduces hair damage while keeping curls.
September 2019 in “University of the Arts London Research Online (University of the Arts London)” Plant oils and polymers can help protect African hair from damage during styling.
7 citations
,
August 2018 in “Journal of cosmetic dermatology” Chemical hair straightening improves smoothness and shine but may cause side effects, suggesting a need for safer methods.
Curly hair may be caused by a muscle contraction, and muscle relaxants might help treat it.
July 2009 in “International Journal of Cosmetic Science” Japanese women's curved hair has an uneven internal structure and varied amino acid composition.
May 2010 in “Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature” A mutation in the KRT74 gene causes woolly hair by affecting hair texture.
4 citations
,
February 2008 in “Dermatologic Surgery” Hair transplant surgery successfully restored a woman's pubic hair, improving her appearance and satisfaction.
March 2010 in “Cosmetic Dermatology” Hair straightening methods have advanced to improve effectiveness and reduce damage, but still rely on heat and chemicals.
13 citations
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March 2015 in “Plastic and reconstructive surgery. Global open” Leg hair can be used for eyelash transplants, resulting in fuller lashes with less maintenance.
February 2025 in “International Journal of Cosmetic Science” A new amino acid derivative, ATS, improves hair texture and moisture, making it easier to straighten curly hair.
September 2025 in “OPAL (Open@LaTrobe) (La Trobe University)” SELP::KP improves hair strength, elasticity, and health, making it a promising hair cosmetic.
Transplanting beard hair into a scalp wound after hair transplant surgery improves scar appearance and hair keeps its normal traits.
6 citations
,
October 2018 in “Drug safety - case reports” Alitretinoin may cause irreversible hair curling as a side effect.
54 citations
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September 2000 in “Archives of dermatology” A hair-straightening product caused widespread hair loss and scalp injuries, mainly affecting African American women.
October 2015 in “Cosmetic Dermatology” Hair straightening changes hair structure and can cause damage if done wrong, but improvements in the methods are expected to continue.
13 citations
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November 2012 in “International Journal of Dermatology” Curly hair breaks more easily, especially with chemical treatments, but simpler grooming reduces breakage.
4 citations
,
February 2025 in “Clinical Cosmetic and Investigational Dermatology” Hair affects self-image and well-being, varying by gender, ethnicity, and country.
10 citations
,
November 2012 in “International Journal of Dermatology” Certain diseases like AIDS and lupus can make African hair become silky.
11 citations
,
February 2019 in “Frontiers in Physiology” Hair properties are interconnected; a comprehensive, cross-disciplinary approach is essential for understanding hair behavior.
1 citations
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January 2017 in “Clinical approaches and procedures in cosmetic dermatology” Hair can't be reliably repaired once damaged; prevention and proper product use are key to maintaining hair health.
January 2017 in “Clinical approaches and procedures in cosmetic dermatology” Cosmetic procedures can harm hair, but damage can be minimized with knowledge and care; however, once hair is damaged, it cannot be reliably repaired.
3 citations
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December 2007 in “Dermatologic Surgery” Hair transplantation successfully restored a woman's pubic hair with natural-looking results and few complications.
May 2023 in “Archives of dermatological research” Some factors like thyroid disease, diabetes treatment, hair dryers, natural hairstyles, and scalp conditions can affect the treatment results for a hair loss condition called CCCA.