January 2011 in “Medicina interna de México” The document concludes that treating the underlying causes of telogen effluvium usually results in hair regrowth.
15 citations
,
May 2020 in “BMC complementary medicine and therapies” Polygonum multiflorum extract helps hair grow longer and fights the effects of hormones that cause hair loss.
58 citations
,
November 2020 in “International Journal of Dermatology” COVID-19 may cause a temporary hair loss condition called telogen effluvium in some patients after recovery.
July 2018 in “Elsevier eBooks” Telogen Effluvium is a common, usually reversible hair loss condition, often improved by removing the trigger and possibly treated with various products, though their effectiveness is uncertain.
20 citations
,
November 2019 in “Stem Cells” Hes1 protein is important for hair growth and regeneration, and could be a potential treatment for hair loss.
10 citations
,
August 2018 in “Experimental Dermatology” Decorin helps hair cells grow and move, and keeps hair growth phase going in mice.
61 citations
,
January 2013 in “Indian Journal of Dermatology, Venereology and Leprology” Hair usually grows back 1-3 months after treatment for anagen effluvium, and children with Loose Anagen Hair Syndrome often improve by adolescence.
44 citations
,
January 2021 in “Dermatologic Therapy” COVID-19 may cause hair loss due to infection stress or treatments.
41 citations
,
November 2013 in “Experimental Dermatology” Leptin, a hormone, is important for starting hair growth.
28 citations
,
October 2011 in “International Journal of Molecular Medicine” Adenosine helps hair grow longer and stronger by boosting certain growth factors and signaling pathways.
4 citations
,
January 2007 in “Australian Veterinary Journal” A horse's sudden hair loss was caused by an allergic reaction to a coat conditioning powder.
October 2025 in “Journal of Mahatma Gandhi University of Medical Sciences and Technology” Amitriptyline can cause temporary hair loss, which stops after discontinuing the drug.
January 2025 in “MEDS Public Health and Preventive Medicine” Spermidine supplements can help extend the hair growth phase and may be useful for treating hair loss.
July 2024 in “Biological and Pharmaceutical Bulletin” Licorice extract helps hair growth and may treat hair loss.
June 2024 in “Archives of dermatological research” Dietary supplements might help prevent post-COVID hair loss, but serum ferritin is not a reliable indicator.
January 2023 in “Open Life Sciences” VEGFR-2 activation is likely involved in hair follicle growth, survival, and development.
18 citations
,
January 2019 in “Experimental Dermatology” Certain cells outside the hair follicle's bulge area can quickly regenerate damaged hair follicles, potentially helping to reduce hair loss from cancer treatments.
4 citations
,
October 2014 in “Journal of Integrative Agriculture” Researchers found 24 genes that change significantly and affect cashmere growth in goats; this could help increase cashmere production.
15 citations
,
July 2008 in “Journal of Dermatological Science” Ephrin-A3 helps increase and speed up hair growth in baby mice.
March 2024 in “Journal of Microbiology and Biotechnology” Phloroglucinol may help improve hair loss by promoting hair growth and reducing oxidative stress.
136 citations
,
June 2006 in “Journal of Dermatological Science” PDGF isoforms can promote and sustain hair growth.
22 citations
,
July 2019 in “PLOS ONE” Skin lymphatic vessels are essential for hair growth.
70 citations
,
January 2015 in “Journal of Clinical and Diagnostic Research” Hair loss from Telogen Effluvium usually gets better within 6 months after addressing the cause.
24 citations
,
September 2001 in “Journal of Dermatological Science” Cyclosporin A helps damaged hair follicles regrow hair quickly.
13 citations
,
March 2020 in “Genes” Disrupting the FGF5 gene in rabbits leads to longer hair by extending the hair growth phase.
6 citations
,
January 2023 in “npj regenerative medicine” Transplanting growing hair follicles into scars can help regenerate and improve scar tissue.
4 citations
,
March 2021 in “International Journal of Dermatology” COVID-19 and related stress may increase hair loss known as Telogen effluvium.
1 citations
,
January 2020 in “bioRxiv (Cold Spring Harbor Laboratory)” Dicer is crucial for hair growth in mice.
1 citations
,
October 2013 in “A & A case reports” Hair loss from telogen effluvium may not happen again after another surgery.
December 2025 in “Cureus” Low serum ferritin is linked to hair loss in women.