254 citations
,
January 2007 in “Chemical Society Reviews” Hair is a complex protein fiber with unique properties useful for developing hair products.
4 citations
,
November 1968 in “Textile research journal” Hair fibers may have a unique, non-protein sheath not previously identified.
43 citations
,
September 2001 in “Scanning” Hair treatments like bleaching increase friction by exposing tiny pores on the hair surface.
28 citations
,
December 2010 in “Langmuir” Hair fibers interact through classical forces, which are influenced by treatments and products, important for hair care and other applications.
40 citations
,
April 2006 in “Journal of the European Academy of Dermatology and Venereology” The Trichoscan system was found to be inaccurate for measuring hair growth, needing better software to be useful.
7 citations
,
January 1981 in “Springer eBooks” Certain small molecules and polymers can change hair's physical properties and how it feels by affecting the bonds within the hair.
62 citations
,
December 2008 in “Journal of structural biology” Hair curvature in Japanese people is linked to specific cell types and filament arrangements in the hair cortex.
32 citations
,
May 2018 in “Cell Cycle” Melatonin helps Cashmere goats grow more hair by affecting certain genes and cell pathways.
13 citations
,
January 2010 in “Advances in Biochemical Engineering / Biotechnology” Understanding hair biology is key to developing better treatments for hair and scalp issues.
12 citations
,
January 2007 in “Current problems in dermatology” Environmental and cosmetic factors, including heat, chemicals, and sun exposure, can cause hair loss and damage.
October 2001 in “WORLD SCIENTIFIC eBooks” Many substances, including chemicals and metals, can cause skin reactions; careful handling and identification of allergens are crucial to prevent dermatitis.
7 citations
,
September 2020 in “International Journal of Cosmetic Science” Different sizes of keratin peptides can strengthen hair, with smaller ones possibly increasing volume and larger ones repairing damage.
April 2026 in “Biomolecules” Squid ink melanin nanoparticles create a safe, long-lasting black hair dye that protects hair and offers UV protection.
January 2026 in “International Journal of Biological Macromolecules” Small KP peptide improves hair without reducing agents, while larger proteins need them for better results.
53 citations
,
July 2016 in “Cosmetics” Future hair cosmetics will be safer and more effective.
26 citations
,
May 2021 in “International Journal of Molecular Sciences” Cheonggukjang may help prevent and manage various diseases and improve overall health, but its odor and safety concerns need addressing.
13 citations
,
May 2016 in “International journal of biological macromolecules” Keratin's mechanical properties are influenced by hydrogen bonds and secondary structure, and can be improved with the SPD-2 peptide.
21 citations
,
April 1982 in “Genetics Research” Mice with the naked gene have missing or abnormal hair cells.
8 citations
,
May 2020 in “International journal of biological macromolecules” Certain treatments can increase protein binding to natural hair but are less effective on permed hair.
The KRTAP36-1 gene affects wool quality in Chinese Tan lambs.
November 2025 in “Journal of Natural Fibers” Human hair waste can be valuable in engineering and materials due to its unique properties.
19 citations
,
January 2009 in “International review of cell and molecular biology” Hair's strength and flexibility come from its protein structure and molecular interactions.
January 1997 in “Elsevier eBooks” Hair and nails are skin parts that develop early and serve protective and functional roles.
1039 citations
,
February 2009 in “Nature Reviews Molecular Cell Biology” Skin stem cells are crucial for maintaining and repairing the skin and hair, using a complex mix of signals to do so.
6 citations
,
May 2020 in “Molecules/Molecules online/Molecules annual” Yak belly hair has higher porosity and is less stiff than human hair, making it absorb dye better but less suitable as a direct substitute for hair dyeing.
438 citations
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October 2010 in “Oncogene” Keratins help protect cells, aid in cancer diagnosis, and influence cancer behavior and treatment.
193 citations
,
January 2015 in “International journal of trichology” Dermatologists need to understand hair products to treat hair and scalp issues better.
90 citations
,
January 1979 in “International review of cytology” Wool follicles are complex, involving interactions between different cell types and structures.
40 citations
,
July 2017 in “Frontiers in Medicine” Early and personalized treatment for hair loss in young people is crucial to prevent permanent damage and should include psychological support.
16 citations
,
October 2015 in “Photochemistry and photobiology” Reducing copper (II) ion levels in hair can decrease hair damage.