March 2026 in “Journal of the mechanical behavior of biomedical materials/Journal of mechanical behavior of biomedical materials” Hair cuticles remain stable and resilient under stress due to strong protein content and crosslinking.
July 2011 in “Microscopy and microanalysis” Human hair's structure makes it tough and resistant to breaking.
Gray hair affects hair's movement and appearance, making it less bouncy and more wavy.
June 2026 in “arXiv (Cornell University)” Hair beds in fluid show nonlinear response due to viscosity, inertia, and elasticity.
49 citations
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June 2004 in “Philosophical Transactions of the Royal Society A Mathematical Physical and Engineering Sciences” Human hair becomes weaker and stretches more easily at higher temperatures.
March 2026 in “Journal of Investigative Dermatology” Early diagnosis and tailored treatment are crucial to prevent permanent hair loss and support self-esteem in children with scarring alopecia.
19 citations
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January 2009 in “International review of cell and molecular biology” Hair's strength and flexibility come from its protein structure and molecular interactions.
November 2008 in “Medical & surgical dermatology” A device was made in 2008 to measure hair loss severity. Other findings include: frizzy mutation in mice isn't related to Fgfr2, C/EBPx marks preadipocytes, Cyclosporin A speeds up hair growth in mice, blocking plasmin and metalloproteinases hinders healing, hyperbaric oxygen helps ischemic wound healing, amniotic membranes heal wounds better than polyurethane foam, rhVEGF165 from a fibrin matrix improves tissue flap viability and induces VEGF-R2 expression, and bFGF enhances wound healing and reduces scarring in rabbits.
1 citations
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July 2020 in “Journal of Al-Azhar University Engineering Sector” Adding human and horse hair fibers to concrete can increase its strength.
22 citations
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January 1985 Water makes hair more flexible, especially the outer layer.
Curly hair may be caused by a muscle contraction, and muscle relaxants might help treat it.
Oxidized hair can naturally regain strength and stability over six months.
13 citations
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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.
2 citations
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July 2019 in “Cosmetics” Beautiful hair is flexible and elastic due to its unique double-layered structure and can be enhanced with succinic acid treatment.
May 2024 in “International Journal of Cosmetic Science” Disulfide bonds are crucial for hair's strength, especially when wet.
January 2015 in “Springer eBooks” Hair damage shows as fragility, dullness, and discoloration, varies by ethnicity, and is worsened by cosmetic procedures and diseases.
Hydrophobic modifications make human hair less affected by water.
75 citations
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September 2015 in “Acta biomaterialia” Alkylation of human hair keratin allows for adjustable drug release rates in hydrogels for medical use.
68 citations
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February 2011 in “European Journal of Pharmaceutics and Biopharmaceutics” Keratin films from human hair can potentially replace human nail plates for drug testing.
54 citations
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May 2021 in “International Journal of Molecular Sciences” Advances in mechanobiology and immunology could lead to scarless wound healing.
47 citations
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September 2011 in “Acta biomaterialia” Protein composition greatly affects the function of keratin biomaterials.
12 citations
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July 2012 in “Journal of Applied Polymer Science” Botanical extracts can protect and repair bleached hair.
4 citations
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December 2018 in “International Journal of Research -GRANTHAALAYAH” Biomagnetic forces can deform red blood cells, not just mechanical factors.
To repair damaged hair, use products with proteins, lipids, and moisture like keratin, citric acid, and oils.
December 2025 in “The American Journal of Interdisciplinary Innovations and Research” The InvisiCaps Method ensures natural-looking hair extensions by carefully matching donor hair characteristics.
February 2024 in “World journal of clinical cases” A young woman had surgery to remove a large hairball that blocked her intestines and then got psychiatric help.
August 2023 in “Journal of Student Research” Human hair keratin mixed with rubber slightly improves its strength and biodegradability.
June 2018 in “International journal of trend in scientific research and development” The review explains how hair products work and the science of different hair types to help improve hair care research.
July 2020 in “CRS 2020 Virtual Annual Meeting” Researchers developed a new skin patch that delivers more finasteride into the skin, potentially improving treatment for hair loss and prostate issues.
August 2024 in “Cosmetics” K18® and Olaplex® both effectively repair bleached hair, improving its strength, smoothness, and overall health.