TGF-β1 and 2 in hair follicles may be linked to hair loss in AGA.
December 1988 in “Anatomia, Histologia, Embryologia” Frequent hair dye use caused significant hair and skin damage and affected the dogs' behavior.
56 citations
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January 1996 in “Journal of Forensic Sciences” Dye enters hair at the edges of cuticle cells and penetrates more from water than alcohol-based solutions.
47 citations
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June 1996 in “International Journal of Legal Medicine” Hair analysis for drugs needs a better understanding of how drugs enter hair, considering factors like hair structure and pigmentation.
47 citations
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June 1994 in “Experimental Cell Research” mHa2 and mHa3 keratins have different structures and roles in mouse hair and tongue tissues.
19 citations
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July 1964 in “PubMed” Hair follicle cells become four types: medulla, cortex, cuticle, and inner root sheath.
18 citations
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January 1994 in “Skin pharmacology and physiology” Sunlight damages hair, causing cuticle loss, protein changes, and discoloration.
10 citations
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December 2001 in “PubMed” The conclusion is that substances can penetrate hair fibers through multiple pathways, including both the cell membrane complex and the non-keratinous parts.
9 citations
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January 2003 The evolution of mammal body hair remains a mystery.
8 citations
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February 2022 in “International Journal of Dermatology” Lipids are crucial for healthy hair, protecting it from damage and breakage.
7 citations
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March 2003 in “Journal de Physique IV (Proceedings)” Calcium soaps are present in human hair and can be removed with acid.
4 citations
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January 2017 in “Annals of Dermatology” Frequent hairdryer use may worsen hair fragility in people with Pili Annulati.
4 citations
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January 2000 Piedraia hortae fungi dissolve both the outer and inner layers of hair.
2 citations
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March 2018 in “ACS Sustainable Chemistry & Engineering” Heating human hair creates hollow microtubes with smooth surfaces.
research Hair
1 citations
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April 2023 in “Elsevier eBooks” Hair analysis can detect drug use but is costly and interpretation is complex.
1 citations
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August 1981 in “The Journal of Dermatology” All major hair defects involve cuticle abnormalities.
February 2025 in “Brazilian Journal of Hair Health” The Brazilian candle flame technique can damage hair by melting the cuticle and exposing the cortex.
Human hair can almost fully recover its structure within about 1,000 minutes after being stretched.
June 2023 in “Experimental dermatology” Pubic hair has a thicker, more protective outer layer than scalp hair, possibly due to evolution.
April 2023 in “CRC Press eBooks” Hair care products mainly work on the hair's surface and need professional guidance for use.
May 2022 in “Experimental dermatology” Trichothiodystrophy hair is structurally abnormal with protein and organization issues.
February 2019 in “PubMed” The research found that twisting hair fibers can show changes in stiffness and damage, and help tell apart different hair treatments.
Hair fibers degrade and change color in very basic water.
June 2017 in “University of the Arts London Research Online (University of the Arts London)” Polymers help reduce damage and improve bleached hair when used during or after bleaching.
November 2015 in “Summit (Simon Fraser University)” Surgical stress temporarily changes hair fiber dimensions, returning to normal after four weeks.
January 2014 in “한국미용학회지” UV-A radiation significantly damages semi-permanent dyed hair.
December 2011 in “URMIA MEDICAL JOURNAL” Glycoconjugate sugars are important for hair follicle development.
January 2008 in “대한미용학회지” UV exposure severely damages hair, making it rough and weak.
The 16th-century mummy's hair was well-preserved due to a calcium coating.
8 citations
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January 2016 in “Journal of fiber science and technology” Bleaching hair increases cysteic acid levels in a predictable way.