New methods to classify curly hair types were developed based on shape and strength.
A new system for classifying curly hair types using precise measurements can improve hair care products and cultural inclusion.
January 2006 in “Seibutsu Butsuri” Curly and straight hair differ in how their internal fibers are arranged.
July 2009 in “International Journal of Cosmetic Science” Japanese women's curved hair has an uneven internal structure and varied amino acid composition.
8 citations
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July 2019 in “The journal of investigative dermatology/Journal of investigative dermatology” Curly hair is mechanically different from straight hair and may need new testing methods.
1 citations
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July 2024 in “International Journal of Cosmetic Science” Hair curvature is the main factor affecting curly hair manageability and product preferences.
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.
13 citations
,
October 2008 in “PubMed” Japanese women's curved hair has an uneven internal structure and varying amino acid composition.
95 citations
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October 2007 in “International Journal of Dermatology” A new method accurately classifies hair types, showing global hair diversity.
4 citations
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July 2010 in “International Journal of Cosmetic Science” Curved human hair has different structures on its convex and concave sides.
10 citations
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June 2019 in “Cosmetics” Mixed-race individuals have hair with varied shapes and more root damage.
February 2024 in “Journal of Dermatological Science” Curved hair can develop when hair cells merge abnormally during growth.
8 citations
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March 2014 in “Dermatologic Clinics” Specialized techniques are needed for hair restoration in individuals with curly Afrocentric hair due to unique challenges.
June 2023 in “Frontiers in Genetics” Genes related to calcium signaling and lipid metabolism are important for curly hair in Mangalitza pigs.
12 citations
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July 2015 in “British journal of dermatology/British journal of dermatology, Supplement” Curly hair breaks due to mechanical damage and environmental factors, not chemical makeup, and needs ongoing care to prevent breakage.
1 citations
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April 2022 in “International Journal of Women's Dermatology” Classifying curl patterns might help doctors assess and treat hair loss better.
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.
Curly hair may be caused by a muscle contraction, and muscle relaxants might help treat it.
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.
The curly mutation in SELH/Bc mice affects hair and may help study human genetic disorders.
October 2012 in “한국미용학회지” For best curls and hair health, use keratin and ceramide after rinsing, or skip rinsing for stable curls.
40 citations
,
February 1990 in “Journal of The American Academy of Dermatology” A 17-year-old developed woolly hair nevus in adolescence, which is unusual, and over time the hair darkened and straightened slightly, but microscopic changes persisted.
January 2024 in “Indian Journal of Pharmaceutical Sciences” Relaxing certain muscles might straighten curly hair.
Frizzy hair is fragile and can lead to hair loss and damage if not properly cared for.
78 citations
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June 2003 in “Journal of the American Academy of Dermatology” Curly hair shape is determined by the hair bulb.
54 citations
,
May 1977 in “The Journal of Pediatrics” Minoxidil helps lower high blood pressure in kids, but can cause fluid retention and hair growth.
1 citations
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October 2024 in “Journal of Clinical Immunology” Vaccines work well in Netherton syndrome patients, similar to healthy people.
March 2026 in “Medeniyet Medical Journal” EH-MSCs may help treat hair loss by boosting regeneration and reducing inflammation.
May 2025 in “Scientific Reports” Oxyresveratrol promotes hair growth and may help treat hair loss.
August 2020 in “Revista de chimie” Nitroglycerin ointment is now used to treat several skin conditions with fewer side effects.