A wavy two-layer closure in hair transplants makes scars nearly invisible for most patients.
11 citations
,
December 2016 in “Frontiers in Psychology” Hair style affects perceptions of age, health, and attractiveness more than hair color does.
Black hair's diversity in patterns and textures is influenced by follicle shape and keratin, and it holds cultural, artistic, and mathematical significance.
8 citations
,
January 2020 in “PeerJ” Alopecia Areata causes significant structural and compositional changes in hair.
December 2022 in “The Turkish Journal of Pediatrics” Hair examination helps diagnose rare neurological diseases in children.
Hair dysplasias involve various hair disorders causing fragility, breakage, and poor hair adhesion.
2 citations
,
March 2018 in “The Journal of Dermatology” The "color-transition sign" helps tell apart alopecia areata incognita from telogen effluvium by looking at hair color changes.
12 citations
,
February 2019 in “Skin research and technology” White hair has less lipid content and absorbs water differently than brown hair.
39 citations
,
January 2011 in “Archives of Dermatology” Reflectance confocal microscopy confirms that yellow dots are signs of damaged hair follicles in alopecia areata.
2 citations
,
August 2022 in “The journal of investigative dermatology/Journal of investigative dermatology” A specific mutation in the K25 gene causes a rare genetic disorder with curly hair at birth and later hair loss, along with dental issues.
5 citations
,
January 1990 in “Journal of Society of Cosmetic Chemists of Japan” Permanent wave lotion can extract proteins from hair, especially when pH is higher, and repeated treatments or bleaching can damage hair.
June 2016 in “한국디자인문화학회지” UVA damages all hair types, especially permanently waved and colored hair.
January 2012 in “한국미용학회지” Applying conditioner in the middle of a perm process reduces hair damage the most.
1 citations
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October 2019 in “Epileptic disorders” A girl with Pitt-Hopkins syndrome developed curly hair as a rare side effect from the epilepsy drug perampanel.
January 2003 in “Research Portal (King's College London)” Hair color affects light reflection, with black hair having higher cuticle angles and lighter hair showing less specular reflection.
May 2025 in “Journal of Clinical Medicine” Women with alopecia areata have poor blood flow, possibly due to nerve inflammation.
5 citations
,
January 2009 in “International Journal of Trichology” Two siblings had a rare hair condition with banded hair, which doesn't need treatment.
62 citations
,
January 2000 in “Developmental dynamics” Notch-related genes play a key role in the development and cycling of hair follicles.
January 2013 in “프로그램북(구 초록집)” Hair perms or treatments seem safe to use up to 3 to 4 times during pregnancy.
23 citations
,
July 1994 in “Journal of Dermatological Science” Pili torti hair twists due to uneven outer root sheath cell development.
Different treatments change the strength and flexibility of human hair.
21 citations
,
December 1994 in “British Journal of Dermatology” Sheep dermal papillae can help form hair follicles in skin models.
63 citations
,
December 1998 in “Biochimica et Biophysica Acta (BBA) - Protein Structure and Molecular Enzymology” The study improved understanding of keratin fiber structure by showing consistent microfibril diameter but varying distances and electron density profiles.
September 2025 in “International Journal of Ayurvedic Medicine” Hair medulla patterns vary by Prakruti type, affecting hair strength.
2 citations
,
March 1942 in “JAMA”
20 citations
,
July 2010 in “Skin Research and Technology” Aging makes hair thinner and rougher, with less clear edges.
New methods to classify curly hair types were developed based on shape and strength.
20 citations
,
July 2005 in “Experimental dermatology” The fuzzy gene is crucial for controlling hair growth cycles.
September 2021 in “CRC Press eBooks” Fibrosing alopecia in a pattern distribution is a type of hair loss that may often be overlooked, especially in men.
June 2024 in “British Journal of Dermatology” There are unequal access to wigs for alopecia patients in the UK, needing policy changes for fairness.