12 citations
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January 2013 in “Acta Histochemica” Junctional proteins stabilize the inner root sheath and connect the companion layer in human hair.
10 citations
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January 2001 in “Bioscience Biotechnology and Biochemistry” Ubiquitin, a protein, is found in hair, nails, and skin.
Mutations in keratin genes may link hair disorders to dental decay.
Chemical treatments weaken hair's thermal stability and structure.
2 citations
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November 1996 in “PubMed” Most people have similar hair protein patterns, but a rare variant was found in two women.
5 citations
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February 1998 in “Polymer” Human hair keratin has a 40% α-helix structure that changes to a random coil in 8 M urea.
3 citations
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September 2013 in “Bioscience Biotechnology and Biochemistry” Type II porcine hair keratin supports cell growth but hinders cell differentiation.
18 citations
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December 2010 in “Journal of analytical atomic spectrometry” A new method accurately measures lead levels in hair to assess exposure.
14 citations
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October 2002 in “Journal of cutaneous pathology” MAP-2 is crucial for the structure of hair follicles and nails.
September 2025 in “OPAL (Open@LaTrobe) (La Trobe University)” SELP::KP improves hair strength, elasticity, and health, making it a promising hair cosmetic.
22 citations
,
August 2015 in “PloS one” Keratin from hair binds well to gold and BMP-2, useful for bone repair.
Keratin hydrogels from human hair show promise for tissue engineering and regenerative medicine.
9 citations
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December 2018 in “Journal of Natural Fibers” Magra sheep's wool luster is linked to specific keratin gene expression and protein variations.
169 citations
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May 2006 in “Genes & Development” Keratin 17 is crucial for normal hair growth by regulating hair cycle transitions with TNFα.
1 citations
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September 2023 in “ACS Biomaterials Science & Engineering” Human hair keratin hydrogels show promise for use in regenerative medicine.
11 citations
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September 1996 in “Journal of applied polymer science” Potassium cyanide treatment changes hair's disulfide bonds, making it more elastic.
5 citations
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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.
2 citations
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September 1996 in “Journal of Applied Polymer Science” Potassium cyanide changes hair's disulfide bonds to monosulfide, affecting high-sulfur proteins more.
May 2005 in “Zhonghua chuangshang guke zazhi” Human hair keratin can help nerve regeneration and is a promising material for nerve repair.
44 citations
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August 1990 in “PubMed” Keratins K1 and K10 are found in the inner root sheath and cuticle of human hair follicles.
12 citations
,
June 2011 in “Journal of applied polymer science” L-phenylalanine and hydrolyzed eggwhite protein deeply penetrate human hair.
October 2021 in “Authorea (Authorea)” New hair perming method using tyrosine is gentler and can be done with a blow-dryer.
June 2025 in “Rapid Communications in Mass Spectrometry” The new method improves protein extraction and analysis in hair, aiding biomedical and forensic work.
4 citations
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June 2022 in “Journal of cleaner production” New eco-friendly method strengthens and sets hair using light and causes less damage.
15 citations
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January 1987 in “Electrophoresis” Human head hair proteins can be typed into eight distinct patterns, useful for genetic and forensic investigations.
11 citations
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January 1987 in “Electrophoresis” Keratin proteins are consistent across different hair types from the same person.
May 2009 in “International Journal of Cosmetic Science” Permanent waving damages hair protein and weakens hair, especially with repeated treatments using sodium thioglycolate.
2 citations
,
September 2022 in “Frontiers in genetics” Different proteins are linked to the varying thickness of sheep and goat hair types.
April 2020 in “International Journal of Cosmetic Science” The study found that minor protein differences between curved and straight Japanese hair are unlikely to significantly affect hair structure.
51 citations
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September 2012 in “Biomacromolecules” Disulfide bonds make keratin in hair stronger and tougher.