17 citations
,
January 2006 in “Veterinary Dermatology” This study found that topical melatonin and vigorous brushing did not affect hair regrowth in clipped Siberian Huskies, although lumbosacral hairs grew significantly shorter than lateral thigh hairs.
2 citations
,
September 2008 in “International Journal of Cosmetic Science” This study found that brushing hair increases the ratio of long-to-short segment breaks compared to combing, with factors like bleaching and wet combing contributing to more long segment breaks.
August 2026 in “Journal of Cosmetic Dermatology” In this study, the Avalanche brushing protocol demonstrated similar hair reduction effectiveness to the stamping method, but with significantly lower discomfort reported by patients, suggesting it may be preferable for individuals with sensitive skin or dense hair in early treatment sessions.
2 citations
,
January 1995 in “Nihon Keshouhin Gijutsushakaishi/Journal of S C C./Nihon Keshouhin Gijutsushakai kaishi” This study found that treating permed hair with diethylene glycol monoethylether significantly reduced the formation of split ends, making it similar to untreated normal hair in terms of split ends generation.
20 citations
,
January 2003 in “Journal of oleo science” This study found that both everyday physical and environmental stresses, as well as chemical treatments, contributed to hair damage, with cuticle layers being more noticeably affected.
7 citations
,
July 1999 in “In Practice” This article discusses the diagnostic approach to symmetrical alopecia in dogs, particularly focusing on conditions affecting the endocrine glands and hair follicles, without presenting new research results.
69 citations
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May 2016 in “General and Comparative Endocrinology” This study found that hair cortisol concentrations in sheep were significantly increased by extensive brushing or dexamethasone treatment, suggesting that external factors may affect its reliability as a chronic stress measure.
3 citations
,
July 2019 in “Journal of Cosmetic Dermatology” This study found that a shampoo with a selective TAAR agonist reduced hair shedding during brushing by 31% in women and contracted the arrector pili muscle.
11 citations
,
March 2005 in “International Journal of Cosmetic Science” This study found that the Bradford assay is a sensitive and reproducible alternative to the Lowry test for quantifying hair protein loss during brushing, with bleached hair releasing more protein than virgin hair.
36 citations
,
December 2016 in “Journal of The American Academy of Dermatology” In this study, researchers evaluated the hair pull test and found that normal values should be reduced to two hairs or fewer, with no significant impact from hair washing, brushing, or lifestyle factors such as hair texture and medication use.
April 2024 in “Acta scientific dental sciences” This case study describes a 45-year-old male with black hairy tongue who experienced complete resolution of tongue discoloration and improved halitosis after receiving treatment focused on enhanced oral hygiene, tongue brushing, and smoking cessation.
This study explored the potential of custard apple extract in an herbal hair conditioner to improve smoothness, aid brushing, and provide other cosmetic benefits, including lice removal and anti-aging effects.
June 2021 in “International journal of research in dermatology” This case report describes a man with trichorrhexis nodosa of the beard, who experienced symptomatic improvement after being advised to shave and avoid brushing, confirming the diagnosis.
November 2017 in “Dermatologic Therapy” This study reports that a new topical solution, AB-102, containing a high concentration of a weak α1 agonist, significantly reduces hair shedding during brushing by up to 77% without causing cardiac or hemodynamic adverse events.
This study found that anti-keratin antibody from immunized cow milk increases the resistance of damaged hair to stretching and inhibits fracture from excessive brushing.
March 2009 in “CRC Press eBooks” This paper reviews how hair conditioners work, primarily by reducing combing forces through lubrication, and reports no new clinical findings.
7 citations
,
July 2025 in “The Journal of Physiology” This study found that human C-tactile afferents respond to hair deflection, suggesting a functionally relevant anatomical relationship to hair follicles similar to that observed in mice.
November 2017 in “Koubunshi rombunshuu/Kōbunshi ronbunshū” In this study, treatments using a shampoo and conditioner with hematin helped repair damaged hair by depositing a cuticle-like structure, straightening hair as observed through electron microscopy.
This report describes a 35-year-old woman seeking advice for hair loss treatment, with no new scientific findings reported.
43 citations
,
November 1988 in “The Journal of Comparative Neurology” This study examined the sensory innervation of hair follicles in the furry skin of rat hindlimbs, finding significant differences among hair types in their innervation patterns and densities.
7 citations
,
June 2018 in “Journal of the American Academy of Dermatology” This article reviews uncombable hair syndrome, highlighting its symptoms, potential diagnosis methods, and the suggestion for biotin supplements, but it reports no new empirical results.
4 citations
,
December 2020 in “Journal of the American Academy of Dermatology” Pulling 2 or fewer hairs is normal for all hair types, including Afro- and Asian-textured hair.
2 citations
,
July 2021 in “Actas dermo-sifiliográficas/Actas dermo-sifiliográficas” This review discusses hair shaft disorders, noting the lack of specific treatments and recommending general care practices to prevent hair damage, with some improvement possible during puberty or with treatments like minoxidil.
February 2026 in “Journal of Family Medicine and Primary Care” This study highlights the link between stress-induced hair loss and stress levels among university students, emphasizing the need to address stress to support their wellbeing and academic achievement.
April 2025 in “Brazilian Journal of Hair Health” This report from Tangle Teezer and TRI Princeton indicates that their Extra Gentle brush reduces hair breakage by up to 39%, offering a therapeutic experience for users with fragile scalps.
December 2023 in “JEADV Clinical Practice” In this report, a young Caucasian woman developed a hairy tongue as an unusual side effect during baricitinib therapy for severe alopecia areata, which was managed by daily toothbrush debridement.
In a study on hair loss treatment, researchers found that a serum containing Cinchona succirubra extract and caffeine improved hair density and reduced hair loss in individuals with acute telogen effluvium after 16 weeks of use, with significant improvements observable after just 4 weeks.
April 2023 in “Journal of Investigative Dermatology” In this clinical study, a serum containing Cinchona succirubra extract and Caffeine significantly improved hair growth and reduced hair loss in subjects with acute telogen effluvium.
This study used quantitative methods to identify new geometric and mechanical parameters of curly and kinky/coily hair, aiming to improve classification and develop better personal care products for these hair types.
61 citations
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January 2013 in “Indian Journal of Dermatology, Venereology and Leprology” This review discusses the causes, clinical presentation, and management of anagen effluvium, emphasizing its psychological impact and the need for empathy and practical support, but reports no new results.