34 citations
,
October 1982 in “Journal of applied polymer science” Moisture content significantly affects how human hair breaks.
11 citations
,
January 2000 in “Journal of cosmetic science” Hydrolyzed wheat proteins penetrate all hair types effectively.
Hair feels different when touched and rubs together in various ways.
8 citations
,
December 2003 in “Materials Research-ibero-american Journal of Materials” Polyquaternium 7® builds up on hair, improving its look and feel, and AFM is good for measuring these changes.
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.
July 2023 in “International Journal of Pharmaceutical Sciences and Drug Analysis” The study found different absorbance values for simplex and complex homoeopathic hair oils when analyzed with a UV-visible spectrophotometer.
4 citations
,
January 2015 in “Sen'i Gakkaishi” Hair and wool strength is affected by the number and type of bonds in their protein structures, with hair having more protein aggregates than wool.
46 citations
,
December 2018 in “Biomedical Optics Express” Raman spectroscopy could effectively guide skin cancer surgery by identifying tumor margins.
21 citations
,
October 2011 in “PloS one” Certain molecules in hair change with age and could be used for cosmetic treatments.
65 citations
,
May 2006 in “Journal of Structural Biology” Hair curliness is due to uneven distribution of different cortices within the hair fiber.
May 2024 in “International Journal of Cosmetic Science” A new method using near-infrared light can effectively detect and analyze internal hair damage.
1 citations
,
March 2010 in “International Journal of Cosmetic Science” The Aqualon SLT device measures hair stiffness and slipperiness to evaluate hair treatments.
1 citations
,
January 2001 in “PubMed” Mechanoreceptors convert physical touch into electrical signals through specialized nerve structures.
13 citations
,
August 2007 in “Journal of Investigative Dermatology” Mouse hair can regrow in a special lab setup without serum.
7 citations
,
December 1987 in “Fertility and sterility” The vellus index is a simple, quick, and reliable method to assess and monitor hair growth, especially in hirsutism.
August 2005 in “Microscopy and Microanalysis” Polymethylene wax in hair relaxers makes hair smooth and shiny with less damage.
2 citations
,
December 2021 The research found that the properties of solid-state Electronic Circular Dichroism (ss-ECD) are influenced by the orientation of local crystals, which could help in examining and mapping chiral materials like pharmaceutical ingredients.
17 citations
,
January 2023 in “International Journal of Cosmetic Science” Hydrophobic interactions affect virgin hair, while electrostatic interactions are key for bleached hair.
7 citations
,
April 2000 in “Mammalian Genome” A new mutation in mice causes crooked whiskers and messy hair.
3 citations
,
July 2019 in “Fibers And Polymers/Fibers and polymers” April 2026 in “Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy” Chemical treatments weaken hair's thermal stability and structure.
January 1997 in “Purdue e-Pubs (Purdue University)” Whole hair strands can reliably measure gamma ray exposure using ESR techniques, but samples should be analyzed quickly or stored in liquid nitrogen.
October 2025 in “DOAJ (DOAJ: Directory of Open Access Journals)” Changes in the cochlea's extracellular matrix contribute to age-related hearing loss.
52 citations
,
August 1978 in “Journal of Applied Polymer Science” Human hair's ability to get wet is complex and can change with treatments, damage, and environment.
December 2023 in “Data in Brief” Curly hair's strength and flexibility vary with moisture and temperature.
1 citations
,
January 2006 High temperatures and cosmetic processes can damage hair keratin, affecting its structure and strength.
June 2016 in “한국디자인문화학회지” UVA damages all hair types, especially permanently waved and colored hair.
15 citations
,
May 2013 in “International Journal of Cosmetic Science” Different ethnic hair types have unique nanoscopic and molecular features despite having the same basic keratin structure.