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January 1976 in “Archives of Dermatological Research” Metabolic disorders can cause hair structure defects and growth issues, but amino acid levels in hair remain normal.
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January 2006 in “Clínicas obstétricas y ginecológicas de Norteamérica” Analyzing hair proteins can help identify new markers for hair health and aging.
February 1989 in “PubMed” A genetic hair protein variant is more common in Japanese people and is inherited.
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August 2023 in “Biomolecules & therapeutics” HAPLN1 can promote hair growth and may help treat hair loss.
September 2001 in “Connective tissue” Type XII and XIV collagens help maintain hair follicle structure in bovine skin.
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February 2025 in “PLoS ONE” Key proteins influence wool quality by affecting hair follicle development in sheep.
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March 2009 in “Pediatric Dermatology” The study found that pili bifurcati causes hair to intermittently split into two branches, each with its own outer layer.
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December 2011 19 citations
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July 1994 in “Journal of Dermatological Science” Human hair keratin genes are similar to mouse genes and are specifically expressed in hair follicles.
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January 1976 in “Vitamins and hormones” Prostate cells have proteins that bind to specific hormones, which can increase protein production when activated by these hormones.
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September 1992 in “Endocrinology” The human type II 5α-reductase gene, linked to certain male health conditions, has a specific structure and low similarity to other related genes.
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January 2016 in “RSC Advances” A non-toxic formula using polycarboxylic acids strengthens and improves hair.
The model explains how mammal ear hair cells respond to sound and adapt.
March 2010 in “International Journal of Cosmetic Science” Disulfide bonds affect the melting behavior of hair's crystalline structure, but hair retains some stability even after these bonds are broken.
October 2023 in “Research Square (Research Square)” Polynucleotide gel injections help reduce hair loss and increase hair thickness in people with pattern hair loss, with few side effects.
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March 2024 in “Discover Applied Sciences” Spirulina proteins can improve hair smoothness and strength in hair care products.
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February 1998 in “The journal of investigative dermatology/Journal of investigative dermatology” Two specific hair keratin genes are active during hair growth and decline as hair transitions to rest.
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April 2012 in “Journal of Investigative Dermatology” KRTAP2 genes are crucial for hair structure and may impact hair disorders and treatments.
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October 1992 in “PubMed” A mycobacterial protein shares a similar region with a human skin protein, possibly affecting skin diseases.
April 2017 in “The journal of investigative dermatology/Journal of investigative dermatology” Astrotactin2 affects hair follicle orientation and skin cell polarity.
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January 1987 in “Current topics in developmental biology/Current Topics in Developmental Biology” Different keratin proteins are expressed in various epithelial cells at different stages, affecting cell structure and function.
Hydrophobic modifications make human hair less affected by water.
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January 2011 in “Skin research and technology” Procyanidin oligomers can protect hair from oxidative damage and could be good for hair care products.
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January 1981 Nucleophilic reagents break down hair keratin, forming more lanthionine and lysinoalanine than in wool.
July 1995 in “Journal of Dermatological Science” July 2019 in “Ferroelectrics” More human hair protein makes the films weaker and less clear.
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January 1992 in “DNA sequence” Researchers found a non-functional sheep keratin gene due to mutations.
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February 2005 in “Biopolymers” Chemical hair straightening changes hair proteins and mostly fixes broken bonds.