1 citations
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August 1985 in “Proceedings annual meeting Electron Microscopy Society of America” This study discusses using SEM/EDX for elemental analysis of hair samples in forensic science but notes challenges in detecting certain trace elements from raw hair.
July 2026 in “Preprints.org” In this study, incorporating a novel amino acid compound into a hair-straightening formulation improved humidity-resistant straightening and enhanced the surface and mechanical properties of hair fibers, including increased bending stiffness, reduced friction, and better shape retention under high temperature and humidity conditions.
April 2026 in “Journal of Pharmaceutical Innovation” In this study, the researchers developed and optimized a curcumin nanocrystal gel to enhance skin permeability, reporting improved dissolution properties and antiproliferative effects on cell lines, suggesting it as a promising topical delivery system.
December 2025 in “Pomeranian Journal of Life Sciences” This case report describes a man who developed localized acquired hypertrichosis due to inflammation and local pressure from over 20 years of working in mining, finding no statistical difference in hair thickness between his shoulders.
January 2025 in “Advanced Materials Interfaces” This study observed that tannic acid significantly reduced hair shedding by 56.2% over seven days in human participants when used as a coating for controlled release of active compounds to hair follicles.
November 2024 in “International Journal of Cosmetic Science” In this study, varying pH levels from 3 to 12 were found to impact hair structure and proteins, with optimal hair health observed between pH 5 and pH 7, while extreme acidic or alkaline conditions notably affected hair morphology and proteome.
November 2023 in “Borneo Journal of Pharmacy” In this study, researchers used scanning electron microscopy to analyze hair damage from 3% hydrogen peroxide and UVB radiation, observing that Caesalpinia sappan hair tonic formulations coated and interacted with the hair cuticle, potentially modifying hair fiber damage.
March 2023 in “Asian journal of beauty & cosmetology” This study found that applying a keratin solution improved tensile strength, reduced absorbance, and increased gloss in damaged hair compared to untreated hair.
January 2023 in “Indian Dermatology Online Journal” This case report describes a novel association between uncombable hair syndrome and Zellweger syndrome due to a homozygous mutation in the PEX12 gene.
January 2020 in “대한미용학회지” This study reported that both gray and black-brown hair had decreased sulfur content after dyeing with a permanent hair dye mixture consisting primarily of carbon, oxygen, nitrogen, and sulfur.
January 2014 in “Journal of the Korean Society of Design Culture” This study found that in female patients with telogen effluvium, club hair in the isthmus region was longer than in those with alopecia areata, offering insights into hair morphology differences.
May 2009 in “International Journal of Cosmetic Science” In this study, permanent waving treatments, especially those using lotion B and repeated procedures, were found to significantly damage hair protein content and physical properties.
September 1989 in “PubMed” This study reported detailed three-dimensional ultrastructural observations of human hair and hair follicles using a modified preparation method, including morphological differences in hair bulb cell layers and surface projections on root sheath cells.
101 citations
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July 1985 in “Journal of the American Academy of Dermatology” In this study, oral biotin improved hair growth, strength, and combability in a child with uncombable hair syndrome, while hair in two others slowly improved without biotin.
62 citations
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December 2008 in “Journal of structural biology” This study found that in naturally curved human scalp hairs, distinct arrangements of cell types on either side of the hair fiber contribute to its curvature.
21 citations
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July 2015 in “International Journal of Nanomedicine” In this study, ultradeformable liposomes containing Tween 20 or terpenes increased phospholipid bilayer fluidity and enhanced skin penetration of sodium fluorescein, with terpenes improving hair follicle penetration.
12 citations
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June 2009 in “Journal of Cosmetic Dermatology” This study reports the first cases of loose anagen hair syndrome in dark-skinned children from Upper Egypt, noting it may be under-diagnosed and primarily causes cosmetic concerns without affecting general health.
7 citations
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June 2015 in “The anatomical record” This study in Hexi cashmere goats found that secondary follicle activity increases with time, and Hoxc13 expression varies significantly across different growth stages, suggesting a role in follicle activity.
3 citations
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February 2023 in “ACS omega” In this study, grape seed oil was found to be the most effective herbal oil for improving gloss and reducing fractures in various hair types.
1 citations
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April 2023 in “bioRxiv (Cold Spring Harbor Laboratory)” This study is the first to document alopecia in Guadalupe fur seals in the Northeast Pacific Ocean, finding that it may result from nutritional stress due to higher sea surface temperatures.
1 citations
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January 2022 in “Brazilian Journal of Pharmaceutical Sciences” This study investigated the physicochemical properties of polystyrene-b-poly(acrylic acid) nanovesicles coated with modified chitosans, finding that they can effectively control surface charge and potentially serve as drug delivery carriers with a 50.7% encapsulation efficiency for minoxidil.
1 citations
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April 2021 in “Han'gug miyong haghoeji/Journal of the Korean society of cosmetology” In this study, researchers found that using 0.75% aspartic acid as an intermediate agent for a permanent wave improved wave formation and retention compared to a control in virgin hair, also reducing cuticle damage and maintaining tensile strength.
1 citations
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July 2017 in “Skin appendage disorders” A 9-year-old Hispanic girl has Uncombable Hair Syndrome, which may improve with age and biotin treatment.
1 citations
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January 2017 in “Clinical approaches and procedures in cosmetic dermatology” This chapter reviews the anatomy and structure of hair, discusses hair damage and analyses, and explores methods for processing hair changes, but presents no new research findings.
68 citations
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September 2018 in “International Journal of Molecular Sciences” In this study, researchers found that exposure to PM10 significantly increased inflammation and impaired collagen synthesis in human dermal fibroblasts, suggesting PM10 contributes to skin aging through these mechanisms.
49 citations
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April 2007 in “Pediatric Dermatology” This study describes a family with uncombable hair syndrome, suggesting autosomal dominant inheritance, and reports that oral biotin improved hair appearance in two young patients.
46 citations
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January 2009 in “Textile Research Journal” This study presents a DNA-analytical method that can reliably identify and differentiate cashmere, fine wool, yak, and camel hair fibers in both untreated and processed samples.
45 citations
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January 2016 in “Journal of Nanomaterials” In this study, silver nanoparticles derived from Ziziphus nummularia leaf extract showed enhanced antibacterial, antifungal, antioxidant, and hair growth properties compared to the leaf extract itself.
42 citations
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September 2000 in “British Journal of Dermatology” This report describes two children with congenital hypotrichosis and found their short hair is due to a shortened anagen phase, with the condition resolving spontaneously during puberty.
33 citations
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September 2018 in “Frontiers in Microbiology” This study demonstrated that human hair shafts can inhibit the growth of Gram-positive bacteria but have no effect on Gram-negative bacterial growth, offering insights into hair and scalp health.