April 2019 in “The journal of investigative dermatology/Journal of investigative dermatology” HDAC inhibitors, like Vorinostat and Entinostat, can help regrow hair in alopecia areata.
January 2012 in “Journal of Natural Remedies” The Abrus precatorius extract can effectively promote hair growth similar to standard treatments.
October 2025 in “Records of Natural Products” Kaempferol promotes hair growth and could be a natural treatment for hair loss.
70 citations
,
February 2017 in “Dermatologic Surgery” Treatment with plasma rich in growth factors improved hair density and thickness for hair loss patients.
13 citations
,
June 2020 in “Stem Cells International” A substance from a specific gel helped to grow hair effectively in mice, suggesting it could potentially be used to treat hair loss in humans.
3 citations
,
October 2009 in “Iranian Journal of Basic Medical Sciences” Buxus wallichiana extract improves hair growth and has antioxidant properties, with oral use more effective than topical.
76 citations
,
August 2018 in “International Journal of Cosmetic Science” Dermal Papilla cells are a promising tool for evaluating hair growth treatments.
7 citations
,
November 2022 in “Communications biology” Keratin injections can promote hair growth by affecting hair-forming cells and tissue development.
June 2017 in “Asian journal of pharmaceutical and clinical research” Green tea extract gel safely increases eyelash length.
190 citations
,
October 2002 in “The FASEB journal” Androgens may cause hair loss by increasing TGF-beta1 from scalp cells, which inhibits hair cell growth.
October 2025 in “bioRxiv (Cold Spring Harbor Laboratory)” Root hair growth slows under force, confirming a model of cell wall mechanics.
February 2021 in “Dermatologic Therapy” Injections improve hair growth, density, and thickness in women safely.
September 2010 in “Advances in Dermatology and Allergology/Postępy Dermatologii i Alergologii” TrichoScan is reliable for counting and measuring hair density but may not accurately assess hair types in women with hair loss.
520 citations
,
February 2001 in “Journal of Clinical Investigation” VEGF helps hair grow and determines follicle size by increasing blood vessel growth.
397 citations
,
February 2004 in “British Journal of Dermatology” Minoxidil boosts hair growth by opening potassium channels and increasing cell activity.
162 citations
,
August 2002 in “Survey of Ophthalmology” Latanoprost can make eyelashes longer, thicker, and darker.
136 citations
,
February 2017 in “International Journal of Molecular Sciences” PRP treatment improves hair growth, and the device used can affect results, with some being more effective.
108 citations
,
July 2004 in “American Journal of Pathology” Stress increases a factor in mice that leads to hair loss, and blocking this factor may prevent it.
83 citations
,
December 2001 in “Journal of Investigative Dermatology” Minoxidil boosts hair growth by targeting adenosine and possibly sulfonylurea receptor 2B.
76 citations
,
March 2005 in “Journal of Molecular Medicine” Certain mice without specific receptors or mast cells don't lose hair from stress.
32 citations
,
February 2024 in “Growth Hormone & IGF Research” Dihydrotestosterone (DHT) stops hair growth in mice by lowering a growth factor important for hair.
32 citations
,
May 2015 in “Journal of Investigative Dermatology” Mice without collagen VI have slower hair growth normally but faster regrowth after injury.
30 citations
,
September 2003 in “Experimental Dermatology” Minoxidil helps prevent stress-caused hair loss in mice.
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.
26 citations
,
March 1986 in “Clinical and Experimental Dermatology” Scalp hair grows at 0.37 mm/day, forearm hair at 0.18 mm/day, and thigh hair at 0.30 mm/day, with no significant differences found in people with certain hair conditions.
22 citations
,
November 2008 in “International Journal of Dermatology” A mix of 5-aminolevulinic acid and iron ion can speed up hair growth.
18 citations
,
April 2019 in “Archives of Dermatological Research” Lactoferrin helps mice grow hair by increasing cell growth and hair follicle development.
12 citations
,
November 2003 in “Journal of the American Academy of Dermatology” Topical diphencyprone helped regrow hair in mice and rats with a condition similar to human hair loss.
8 citations
,
July 2017 in “Biochemical and biophysical research communications” A new compound, BOI, can help hair grow by changing hair cycle phases and increasing certain cell contents.
7 citations
,
March 2016 in “Journal of Cosmetic and Laser Therapy” Home-use lasers and IPL devices are unlikely to directly cause paradoxical hair growth; it may be linked to inflammation or hormonal issues.