8 citations
,
July 2004 in “Journal of morphology” Marsupial hair structure and keratin distribution are similar to placental mammals.
30 citations
,
April 2009 in “Mycoses” Microsporum gypseum fungus breaks down keratin in hair by digesting it enzymatically, starting with less keratinized parts.
62 citations
,
January 2004 in “The journal of investigative dermatology/Journal of investigative dermatology” A second domain of high sulfur KAP genes on chromosome 21q23 is crucial for hair structure.
15 citations
,
July 2004 in “Journal of morphology” Monotreme hair structure and protein distribution are similar to other mammals, but their inner root sheath cornifies differently, suggesting a unique evolution from reptile skin.
18 citations
,
November 2010 in “Journal of morphology” Antler velvet hair and body hair of red deer have different structures that help with protection and insulation.
13 citations
,
March 2010 in “International Journal of Cosmetic Science” Hair coloring increases copper and calcium uptake, damaging hair and reducing shine.
November 2023 in “Borneo Journal of Pharmacy” Sappan wood hair tonic helps protect and repair damaged hair.
12 citations
,
February 2019 in “Skin research and technology” White hair has less lipid content and absorbs water differently than brown hair.
13 citations
,
June 2011 in “International Journal of Cosmetic Science” Human hair absorbs calcium and magnesium from tap water, affecting its structure and styling properties.
November 2024 in “International Journal of Cosmetic Science” Hair absorbs moisture differently based on its structure and treatment, with changes occurring at 30% humidity.
October 2015 in “Cosmetic Dermatology” Hair styling products and tools help improve hair's look and manageability but can damage hair if used incorrectly.
January 2000 in “Zhongguo yixue wulixue zazhi” Different human hair keratin types have unique structures that affect how they dissolve and can be used to create self-tendons.
425 citations
,
August 2002 in “BioEssays” The cornified cell envelope forms a protective barrier in skin and hair, using specific proteins and lipids to maintain effectiveness.
Hair fibers degrade and change color in very basic water.
81 citations
,
December 2007 in “Acta materialia” AFM helped show how hair changes under tension and the effects of damage and conditioner.
15 citations
,
February 1999 in “The anatomical record” Some mutant mice have hair with abnormal cross-linking, mainly in the cuticle, not affecting other hair parts.
117 citations
,
August 2005 in “Ultramicroscopy” Human hair's strength and flexibility vary by ethnicity, damage, and treatment.
28 citations
,
November 2018 in “Journal of structural biology” Different populations have distinct hair structures related to their ancestry.
23 citations
,
January 1981 Hair is mostly made of three protein types: helical, high-sulfur, and high-tyrosine.
15 citations
,
October 2004 in “Colloids and surfaces. B, Biointerfaces” Holes in mature hair are likely caused by the removal of substances during hair care.
9 citations
,
March 2005 in “International Journal of Cosmetic Science” The torsional method effectively evaluates hair damage and the performance of hair care ingredients.
7 citations
,
January 2001 in “Comprehensive series in photosciences” UV radiation significantly damages hair, especially with humidity, making it more vulnerable to further damage.
3 citations
,
January 2002 in “Springer eBooks” Alkaline hair relaxers damage hair, but cationic and non-ionic polymers can help reduce this damage.
May 2026 in “International Journal of Health Management Review” Alkaline substances can severely damage hair and scalp health.
January 2026 in “International Journal of Biological Macromolecules” Small KP peptide improves hair without reducing agents, while larger proteins need them for better results.
April 2023 in “CRC Press eBooks” Hair care products mainly work on the hair's surface and need professional guidance for use.
49 citations
,
April 2010 in “International Journal of Cosmetic Science” Hair ages as the cuticle wears down, especially beyond 1 meter from the root, affecting its strength and shine.
14 citations
,
July 2007 in “International Journal of Cosmetic Science” The new 3D imaging method accurately measures hair surface details quickly.
5 citations
,
December 2020 in “International journal of biological macromolecules” Treatments improved hair surface and scale structure but didn't increase certain bonds in the hair cortex.
January 2015 in “Chinese Veterinary Science” Recognizing ultrastructures of cashmere goat hair follicles helps identify and locate follicle layers.