Different treatments change the strength and flexibility of human hair.
19 citations
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January 2020 in “Journal of Biophotonics” A PEG-400/oleic acid mixture best improves drug delivery monitoring through hair follicles.
Trichohyalin, a protein from pig tongue, was purified and found to have a filamentous structure.
6 citations
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November 2012 in “Hair transplant forum international” The Laxometer helps make hair transplants with many grafts safer.
April 2020 in “International Journal of Cosmetic Science” The study found that minor protein differences between curved and straight Japanese hair are unlikely to significantly affect hair structure.
125 citations
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February 1971 in “Biochemistry” Specific cross-linkages help make hair proteins stable and strong.
February 2026 in “The European Physical Journal E” Root hair growth mechanics depend on turgor pressure and cell wall properties.
September 2014 in “Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE” OCT can effectively examine and reveal details about human hair and scalp conditions.
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December 2010 in “PubMed” The new stiffness test works well for gels but not for sprays.
January 2025 in “BMC Genomics” Long non-coding RNAs help regulate wool fineness in Gansu alpine fine-wool sheep.
November 2025 in “Journal of Investigative Dermatology” NUL-5 may boost hair growth by improving hair follicle health and structure.
November 2025 in “Archives of Dermatological Research” Limelight (CB-EVs) safely promotes hair growth.
26 citations
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January 2016 in “Annals of Dermatology” Ecklonia cava polyphenols help increase human hair growth and reduce hair loss.
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July 1990 in “PubMed” Human hair follicles can grow and form structures in a collagen gel, useful for studying hair cell growth.
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July 2014 in “Skin research and technology” Stretching damages Caucasian hair's structure more easily than Asian hair.
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July 1994 in “Journal of Cell Science” Cross-linked proteins help maintain the structure of hair, feathers, and hagfish teeth.
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January 2011 in “Journal of biomedical optics” OCT is a reliable, noninvasive way to measure hair thickness.
Human hair can almost fully recover its structure within about 1,000 minutes after being stretched.
10 citations
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January 2004 in “Dermatologic Surgery” Storing hair follicles in special buffers with added protective substances can increase hair growth and reduce cell death.
2 citations
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February 2021 in “FEBS open bio” Human hair keratins K85 and K35 create unique filament patterns important for early hair formation.
578 citations
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May 1996 in “Plant Cell & Environment” Low phosphorus makes Arabidopsis thaliana grow longer root hairs.
Stretching-setting treatment works for wool and human hair using specific equipment and methods.
14 citations
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July 2017 in “Fitoterapia” Oleanolic acid promotes hair growth by increasing cell proliferation through the Wnt/β-catenin pathway.
4 citations
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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.
35 citations
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December 2017 in “Journal of Experimental Botany” AtCSLD3 and GhCSLD3 genes enhance root growth and cell elongation in plants.
January 2004 in “Dermatologic Surgery” Storing hair follicles in a special buffer with certain inhibitors can increase hair growth and improve transplant results.
12 citations
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June 2011 in “Journal of applied polymer science” L-phenylalanine and hydrolyzed eggwhite protein deeply penetrate human hair.
23 citations
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July 1994 in “Journal of Dermatological Science” Pili torti hair twists due to uneven outer root sheath cell development.
191 citations
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November 1959 in “Annals of the New York Academy of Sciences” Hair and wool have complex microscopic structures with microfibrils and varying cystine content.
26 citations
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March 2013 in “Journal of Biomedical Materials Research Part A” Researchers created a 3D hydrogel that mimics human hair follicles, which may help with hair loss treatments.