54 citations
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January 2013 in “BMC Complementary and Alternative Medicine” Thuja orientalis hot water extract may help hair grow by starting the growth phase and improving hair follicle development.
30 citations
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August 2004 in “British Journal of Plastic Surgery” Chest hair can be successfully used for scalp hair transplants, growing longer like scalp hair.
19 citations
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January 1997 in “Endocrinology” Testosterone can slow hair growth in adult monkeys, but a blocker called RU 58841 can counteract this and potentially help hair regrow.
17 citations
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June 2012 in “Journal of experimental zoology. Part B, Molecular and developmental evolution” Hair in mammals likely evolved from glandular structures, not scales.
10 citations
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February 2013 in “British Journal of Dermatology” Thyrotropin-releasing hormone may help control skin and hair growth and could aid in treating related disorders.
31 citations
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September 1996 in “Differentiation” The upper dermal sheath can regenerate hair in rats.
August 2018 in “The Molecular Biology Society of Japan” 193 citations
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May 2008 in “Development” Activating β-catenin can turn skin cells into hair follicles.
November 1995 in “Journal of Pediatric Health Care” Most hair loss in kids and teens is due to common conditions, and hair usually grows back within 6 months.
1 citations
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August 2024 in “Transgenic Research” Activated β-catenin affects hair growth and skin thickness, and changes are reversible.
25 citations
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December 1991 in “The Journal of Dermatology” Cyclosporin A promotes hair growth in young nude mice.
53 citations
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May 1986 in “Clinics in endocrinology and metabolism” Androgens like testosterone affect hair growth and oil production differently across body parts and individuals.
March 2026 in “Journal of Bioscience and Bioengineering” Oxytocin from hair cells helps hair growth and stem cell increase.
4 citations
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June 2020 in “British Journal of Pharmacology” Activating TRPV4 in skin cells helps regrow hair in mice, possibly offering a treatment for hair loss.
7 citations
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March 2012 in “Journal of Investigative Dermatology” Some thymic peptides can increase human hair growth, while others may inhibit it.
18 citations
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April 2016 in “Molecular Genetics and Genomics” Thymosin beta 4 may help hair growth and could be a treatment for hair issues.
67 citations
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August 2005 in “Journal of Investigative Dermatology Symposium Proceedings” Androgens promote beard growth but cause hair loss in androgenetic alopecia, with TGF-β1 as a potential treatment target.
66 citations
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August 2001 in “Experimental Dermatology” Human hair follicle cells can grow hair when put into mouse skin if they stay in contact with mouse cells.
March 2013 in “Journal für Kardiologie (Krause & Pachernegg GmbH)” Hormones significantly affect hair growth and loss, with potential for new treatments.
3 citations
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November 2019 in “Journal of Investigative Dermatology” Adenosine helps human hair grow and prevents hair loss by targeting specific cells.
9 citations
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October 1991 in “Archives of Dermatological Research” Testosterone, DHT, and estradiol significantly affect hair cell growth.
23 citations
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July 1993 in “The journal of investigative dermatology/Journal of investigative dermatology” Certain chemicals and peptides can promote hair growth or prevent baldness.
23 citations
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December 1991 in “Annals of the New York Academy of Sciences” Balding scalps slow down hair growth.
51 citations
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November 1998 in “The journal of investigative dermatology/Journal of investigative dermatology” Beard cells, unlike scalp cells, produce growth factors in response to testosterone, which may explain differences in hair growth.
4 citations
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March 2007 in “British Journal of Dermatology” Gefitinib therapy can cause unusual hair growth on the nose.
48 citations
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April 1995 in “PubMed” Testosterone helps beard and axillary hair cells grow by releasing growth factors from dermal papilla cells.
10 citations
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October 2000 in “PubMed” E6/E7 oncogenes in hair follicles cause continuous hair growth by skipping the resting phase.
34 citations
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December 1991 in “Annals of the New York Academy of Sciences” The conclusion is that small hair follicles cause baldness in macaques, and treatments like antiandrogens and minoxidil can prevent hair loss and promote regrowth.
1 citations
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January 2016 in “Journal of Biosciences and Medicines” The ACTH/MC2R system is crucial for controlling hair growth cycles in mice.
5 citations
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January 2023 in “Nature cell biology” A specific signal from hair cells controls the tightening of the surrounding muscle, which is necessary for hair shedding.