107 citations
,
September 2002 in “Journal of Investigative Dermatology” This study identified a distinct "exogen" phase in the hair cycle during which hair shedding occurs, primarily coupled with the anagen phase, rather than as part of the telogen phase.
43 citations
,
October 2002 in “International Journal of Cosmetic Science” This study found that 1% ketoconazole and 1% piroctone olamine shampoos increased hair shaft thickness and reduced hair shedding in men with telogen effluvium and androgenic alopecia associated with dandruff.
34 citations
,
March 2001 in “Cleveland Clinic Journal of Medicine” This article reviews the triggers, diagnosis, and management of telogen effluvium in men and women, emphasizing the role of patient education and reassurance, but presents no new clinical findings.
2 citations
,
January 2022 in “Clinical, Cosmetic and Investigational Dermatology” This study found that a refined wash test can effectively differentiate shedding hair characteristics among normal individuals, and patients with androgenetic alopecia or telogen effluvium, aiding in diagnosis and monitoring.
234 citations
,
December 1996 in “Journal of The American Academy of Dermatology” The authors concluded that chronic telogen effluvium in middle-aged women presents distinct clinical and histological features that differ from androgenetic alopecia and acute telogen effluvium.
56 citations
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January 2001 in “Dermatology” This study introduces the concept of teloptosis, which influences hair shedding during the telogen phase and affects hair density, highlighting that early or delayed teloptosis has noticeable effects.
51 citations
,
January 2004 in “Skin Pharmacology and Physiology” This review discusses various techniques for evaluating hair shedding and alopecia but reports no new clinical results. The authors emphasize the value of specific clinical and instrumental methods in assessing hair growth.
37 citations
,
January 2009 in “Dermatology” This study reports that hair growth and shedding in healthy women show annual seasonal patterns, with the highest shedding in summer and a less pronounced peak in spring.
22 citations
,
January 2015 in “Dermatology Research and Practice” This study found that an oral marine protein supplement significantly increased hair growth and reduced hair shedding in women with temporary thinning hair over 90 days compared to a placebo.
16 citations
,
February 2017 in “Dermatology and Therapy” This study established and validated a visual scale to assess hair shedding in women with thick hair, finding it effective in distinguishing greater hair loss among women with female pattern hair loss compared to those without.
14 citations
,
January 1999 in “Dermatology” This study found that the wash test reliably measures hair shedding in children, with the number of shed hairs increasing with age and suggesting a potential early onset of androgenetic alopecia.
9 citations
,
January 2006 in “American Journal of Clinical Dermatology” This study found that Malassezia carriage was significantly more common among participants experiencing hair shedding, suggesting a potential link between this fungal presence and hair loss.
7 citations
,
October 2016 in “Dermatologic Therapy” This study quantified hair shedding in women without female pattern hair loss and found that about 40% experienced excessive shedding during hair washing, emphasizing the need for further research into this common concern.
August 2026 in “International Journal of Cosmetic Science” This study found that shed hairs from the root significantly outnumber broken hairs during hair fall, particularly in Chinese male and female participants, with shedding predominantly occurring during washing.
June 2026 in “International Journal of Research in Dermatology” This study found that Indulekha Bringha scalp serum significantly reduced hair shedding and improved hair density more effectively than 3% Redensyl serum in healthy Indian adults experiencing hair loss.
April 2025 in “Cosmetics” In this randomized, double-blind study, a shampoo containing Plantago asiatica L. significantly improved hair thickness and density while reducing hair loss over 12 weeks in adults compared to a placebo.
October 2023 in “The Journal of Dermatology” This study developed and validated the Hair-Shedding Visual Scale for Asian Women, finding it to be an effective tool for identifying FPHL and TE.
August 2011 in “Clinical and Experimental Dermatology” In this study, 30% of a diverse female sample reported experiencing what they perceived as excessive hair shedding, often beginning abruptly and without an attributable cause.
8 citations
,
July 2020 in “BMC genomics” In this study, ceruloplasmin and keratin 4 were identified as markers that differentiate between growing and resting phases in cashmere goat hair follicles, with keratin 4 being a potential marker for the onset of a new hair cycle.
March 2025 in “Journal of Dermatological Treatment” This study explored whether using topical minoxidil can temporarily increase hair shedding, but results are not reported.
32 citations
,
April 2015 in “British Journal of Dermatology” This article discusses hair shedding in women and does not offer new research results; it highlights the need for objective criteria to define excessive hair shedding.
31 citations
,
October 2010 in “Journal of the European Academy of Dermatology and Venereology” The authors concluded that some patients clinically diagnosed with telogen effluvium may actually have alopecia areata incognita, suggested by the presence of dystrophic hairs and development of alopecia patches.
19 citations
,
May 2012 in “The journal of investigative dermatology/Journal of investigative dermatology” This study found that mice lacking the type 3 IP(3) receptor in their hair follicles experienced repetitive hair loss and regrowth, indicating disrupted hair-cycle regulation potentially linked to specific signaling pathways.
6 citations
,
August 2021 in “International Journal of Cosmetic Science” This study concluded that a regimen containing functional antioxidants and barrier-enhancing agents reduced hair shedding and increased perceived hair fullness in participants with self-perceived hair thinning over 24 weeks.
3 citations
,
March 2022 in “Annals of Medicine” This study suggests that telogen effluvium is more closely related to the severity of COVID-19 and associated inflammation than to hormonal factors, with women showing a higher prevalence.
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.
1 citations
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August 2021 in “International journal of cosmetic science (Print)” This study reported that using piroctone olamine in either a shampoo or leave-on product form significantly increased hair retention and improved scalp condition in women with perceived hair thinning.
July 2026 in “International Journal of Clinical & Experimental Dermatology” This exploratory pilot study reported that using a 2% Oleosome-FGF-2 fusion extract scalp serum twice daily for 84 days in women with telogen effluvium and brittle hair improved hair density, anagen/telogen ratio, hair shaft thickness, and scalp hydration compared to a placebo.
In this study, a polyphenol and biotin supplement improved skin roughness and significantly reduced hair shedding, but did not demonstrate clear superiority over placebo in overall skin outcomes.
March 2026 in “International Journal of Research and Review” This clinical study found that Rosmarinum officinalis mother tincture significantly improved hair volume and density in individuals with diffuse hair loss by enhancing hair parameters measured through a hair shedding visual scale and ponytail thickness test.