July 2020 in “Journal of The American Academy of Dermatology” Botulinum toxin affects hair follicles, inhibiting TGF-B1 secretion; more research ongoing.
June 2017 in “The Journal of Clinical Endocrinology and Metabolism” Finasteride's sexual side effects not caused by androgen deficiency or SRD5A inhibition.
58 citations
,
December 1992 in “British Journal of Dermatology” Rat hair follicles grow longer in vitro, but certain factors can inhibit this growth.
25 citations
,
June 2002 in “Steroids” 4-azasteroids, including finasteride, can inhibit 5α-reductase, helping treat conditions like enlarged prostate and hair loss.
23 citations
,
November 2015 in “Phytotherapy Research” Certain herbal compounds, especially from bitter melon, can inhibit cancer growth and promote hair growth by blocking PAK1.
14 citations
,
July 2016 in “Journal of Endocrinology” The equine epididymis mainly uses type 1 5α-reductase, and both finasteride and dutasteride can inhibit its activity.
7 citations
,
March 2018 in “Asian-Australasian journal of animal sciences” OCIAD2 and DCN genes affect hair growth in goats by having opposite effects on a growth signaling pathway and inhibiting each other.
7 citations
,
March 2012 in “Journal of Investigative Dermatology” Some thymic peptides can increase human hair growth, while others may inhibit it.
6 citations
,
January 1996 in “Endocrine-related Cancer” Combining flutamide and finasteride can reduce prostate weight and tumor growth, potentially benefiting treatments needing optimal DHT inhibition.
5 citations
,
March 2011 in “Journal of proteomics” Histone H4, released by cells exposed to colchicine, can cause hair loss by inhibiting cell growth and enzyme activity.
3 citations
,
June 2018 in “Bioorganic & medicinal chemistry” Compounds 4, 4b, and 4c effectively inhibit an enzyme linked to testosterone conversion without significant toxicity.
2 citations
,
September 2024 in “Animal Cells and Systems” Hepatitis B virus alters steroid hormones in male mice, reducing dihydrotestosterone to inhibit viral replication.
Keratinocytes can reverse the effects of the GNAQ oncogene, inhibiting melanoma cell growth.
Low doses of certain Chinese herbs can promote hair growth, while high doses may inhibit it.
January 2004 in “Kölner Universitäts PublikationsServer (Universität zu Köln)” Collagen XVII and CD151 affect cell movement, with CD151 inhibiting migration when bound to integrins.
August 1994 in “Journal of dermatological science” Different substances affect hair and skin cell growth in various ways, with some promoting and others inhibiting cell proliferation.
53 citations
,
July 2021 in “International Journal of Molecular Sciences” Geranium pyrenaicum extracts show potential for cancer, antiviral, and enzyme inhibition treatments.
30 citations
,
December 2018 in “Trends in Endocrinology and Metabolism” Both immature and mature fat cells are important for hair growth cycles, with immature cells promoting growth and mature cells possibly inhibiting it.
21 citations
,
April 2008 in “Toxicologic Pathology” CI-1033 causes skin lesions in rats, similar to humans, due to EGF receptor inhibition.
19 citations
,
May 2014 in “Molecules” Avicequinone C, a compound found in the Avicennia marina plant, can reduce hair loss by inhibiting a hormone linked to androgenic alopecia.
9 citations
,
July 2014 in “Experimental Dermatology” PTHRP agonists can stimulate hair growth, especially in damaged follicles, while antagonists may initially increase growth but ultimately inhibit it.
4 citations
,
August 2019 in “General and Comparative Endocrinology” Male yak hair growth is influenced by DHT synthesis, which is promoted by 5α-red1 and AR during growth phases, while E2 may inhibit growth through ERα.
1 citations
,
October 2020 in “Current Drug Discovery Technologies” The research found that compound 6, a newly created steroid, is more effective at inhibiting 5α-reductase (an enzyme) than current treatments, suggesting it could be a better option for treating urinary tract symptoms in men.
August 2025 in “Current Issues in Molecular Biology” Key pathways like WNT, EGF, FGF, SHH, and BMP regulate poultry feather growth, with BMP inhibiting it.
December 2022 in “Journal of applied biological chemistry” Betula platyphylla extract, particularly the H3-2 fraction, may help treat hair loss by promoting cell growth and inhibiting a hair loss-related enzyme.
December 2015 in “아시안뷰티화장품학술지” Green tea's EGCG has various health benefits, including antioxidant properties, skin protection, cancer cell growth inhibition, anti-inflammatory effects, fat breakdown, detoxification, diabetes management, hair growth stimulation, and prevention of gum disease.
Thai plant extracts, especially Avicennia marina, can promote hair growth by inhibiting certain enzymes and boosting growth factors.
January 1999 in “Journal of S C C J” Certain growth factors regulate hair growth cycles, male hormones affect hair cycles, and drugs like Minoxidil and Finasteride can stimulate hair growth and inhibit male pattern baldness respectively.
3 citations
,
July 2022 in “Stem Cell Research & Therapy” Turning off a specific gene in stem cells speeds up skin healing by helping cells move better.
2 citations
,
February 2018 in “InTech eBooks” TNF-alpha inhibitors can cause various immune-related skin issues.