Curly wool has more orthocortex than straight wool.
1 citations
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November 2023 in “Cosmetics” Surfactants damage hair, but sealing the cuticle can prevent this.
April 2018 in “Journal of Investigative Dermatology” The keratin network in mouse skin changes during cornification and affects the skin's protective barrier.
October 2022 in “Hair Transplantation” Temporary scalp trichopigmentation creates a shaved hair look on the scalp using pigments that fade over time.
12 citations
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February 2019 in “Skin research and technology” White hair has less lipid content and absorbs water differently than brown hair.
September 2023 in “Journal of Natural Fibers” Drying hair with a microfiber towel better maintains hair strength and structure than using a cotton towel or blow-drier.
1 citations
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March 2005 in “International Journal of Cosmetic Science” Twisting hair weakens it, but strength can be recovered at low twist levels.
1 citations
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August 2015 in “PubMed” Human hair's strength comes from a honeycomb-like structure and macrofibrils.
February 2022 in “Fibers” Scientists created a non-toxic, sugar-based hair product that can style hair without damage.
4 citations
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March 2021 in “Journal of Surfactants and Detergents” Shampoo B, which uses water-soluble silicone, is better at detangling hair in wet conditions due to its two-layer conditioning film.
January 2017 in “Durham e-Theses (Durham University)” Chemical stressors damage hair structure but the skin's outer layer protects living cells.
18 citations
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January 1965 in “Stain Technology” 19 citations
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May 2008 in “Applied spectroscopy” Human hair has different protein structures in its cuticle and cortex.
January 1991 in “Acta Dermato Venereologica” A new method effectively visualizes keratin in hair without harsh chemicals.
6 citations
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January 2005 in “PubMed” Cotton honeydew extract improves hair smoothness and reduces damage.
29 citations
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February 1989 in “Journal of Cutaneous Pathology” A unique hair tumor with a rippled pattern was identified, showing incomplete differentiation and unusual cell arrangements.
March 2007 in “Journal of Plastic Reconstructive & Aesthetic Surgery” A new method was developed to create better skin models for healing and reconstruction.
Moisture makes hair flexible for reshaping during blowouts.
1 citations
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June 1998 in “Journal of Forestry Research” Mammalian hair scales change from smooth to wavy due to friction.
3 citations
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October 1994 in “Medical Molecular Morphology” The lower part of rat vibrissa hair gets more blood and is well-protected for growth.
32 citations
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February 2018 in “Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy” Cosmetic residues on individual hairs can be identified and differentiated using ATR FT-IR microspectroscopy.
221 citations
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June 1999 in “In Vitro Cellular & Developmental Biology - Animal”
January 2009 in “Nihon Keshouhin Gijutsushakaishi/Journal of S C C./Nihon Keshouhin Gijutsushakai kaishi” Curved human hair has different structures on each side, which might cause its shape and is similar to wool.
Acidic sandy clay damages archaeological hair the most, while dry conditions preserve but make it brittle; silicone oil can help keep the hair flexible.
11 citations
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January 2016 in “Biointerphases” The hair's outermost surface has multiple layers of lipids and proteins.
2 citations
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February 2016 in “Journal of sol-gel science and technology” A small molecule can strengthen fine hair, making it more resistant and natural-feeling.
1 citations
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January 2015 in “Journal of Society of Cosmetic Chemists of Japan” Keratin film can effectively measure hair texture and adsorption properties.
August 2011 in “SpringerReference”
NaOH treatment improves hair strength and suitability for textiles.