75 citations
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January 2014 in “Korean Journal of Urology” 5α-reductase inhibitors can cause sexual problems, higher risk of aggressive prostate cancer, and depression.
69 citations
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December 2011 in “Journal of Ethnopharmacology” Some Thai plants, especially Carthamus tinctorius, could help prevent hair loss and promote hair growth without adverse effects.
51 citations
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May 2011 in “Phytotherapy Research” Ginseng, especially red ginseng, may help regrow hair and block a hair loss-related enzyme.
45 citations
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August 2010 in “Hormone Molecular Biology and Clinical Investigation” Type 3 5α-reductase is more common and finasteride and dutasteride strongly inhibit it.
37 citations
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January 1991 in “Reproductive Toxicology” Finasteride reduces male rat fertility by causing issues with copulatory plug formation.
25 citations
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November 2015 in “Journal of Ethnopharmacology” Certain Chinese herbs, especially Cacumen platycladi, can promote hair regrowth and reduce hair loss-related hormone levels in mice.
17 citations
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March 2020 in “Frontiers in Chemistry” Compounds from the plant Mammea siamensis may help treat hair loss.
13 citations
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November 2019 in “Scientific reports” Certain drugs change freshwater snail shells to a "banana" shape.
4 citations
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July 2015 in “Veterinary Dermatology” Two types of 5α-reductase are in dog skin, which might make dutasteride better than finasteride for treating dog hair loss.
3 citations
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January 1994 in “Toxicological Sciences” Finasteride causes abnormal growth in male mice cells at high doses.
3 citations
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March 2005 in “The Journal of urology/The journal of urology” Dutasteride may help shrink prostate cancer tumors.
September 2025 in “Consilium Medicum” 5α-reductase inhibitors help manage symptoms of benign prostatic hyperplasia and may also prevent prostate cancer and treat hair loss.
July 2024 in “Biological and Pharmaceutical Bulletin” Licorice extract helps hair growth and may treat hair loss.
December 2023 in “Biointerface Research in Applied Chemistry” Stiripentol shows promise as a potential treatment for androgen-related diseases but needs more testing.
11 citations
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January 2017 in “Journal of Endocrinology/Journal of endocrinology” Female mice with disrupted 5α-reductase 1 had significant metabolic issues, including stress response problems, insulin resistance, liver fat buildup, and obesity.
8 citations
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July 2019 in “Pure and Applied Chemistry” Some natural compounds from Iris plants can block enzymes related to certain disorders, with a few affecting both targeted enzymes.
6 citations
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April 2017 in “Frontiers in Pharmacology” Chinese medicine may help treat hair loss by affecting genes and enzyme activity.
47 citations
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April 2003 in “Journal of dermatological science” Thujae occidentalis semen extract may help treat male pattern baldness by blocking a hair loss-related enzyme and reducing hair loss in mice.
27 citations
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May 2015 in “Neuropharmacology” Dutasteride protects dopamine neurons in Parkinson's mice, but Finasteride doesn't.
218 citations
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December 2011 in “Advances in Urology” The document concludes that the 5 alpha-reductase enzymes are important in steroid metabolism and related to various human diseases, with inhibitors used to treat conditions like male pattern baldness and prostate issues.
142 citations
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August 2007 in “Journal of The American Academy of Dermatology” New 5% minoxidil foam effectively promotes hair growth and is safe for use.
93 citations
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February 2009 in “Annals of the New York Academy of Sciences” 5α‐reductase isozymes are crucial for prostate development and health, and targeting them can help prevent and treat prostate issues.
47 citations
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January 2001 in “Journal of Investigative Dermatology” High testosterone to epitestosterone ratio in hair could predict male-pattern baldness.
34 citations
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February 1999 in “Journal of Dermatological Science” Minoxidil boosts enzymes that help hair growth.
31 citations
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January 2017 in “Advances in Experimental Medicine and Biology” Low testosterone and 5α-reductase inhibitors can harm men's metabolic and sexual health; testosterone therapy may help, but discussing 5α-RIs' side effects is important.
26 citations
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September 2018 in “Neurobiology of Disease” Finasteride and dutasteride reduce unwanted movements from Parkinson's disease treatment by normalizing certain brain signals.
17 citations
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October 2003 in “Brazilian Journal of Medical and Biological Research” The gene SDR5A1 is found in scalp hair of both hirsute and normal individuals, but it does not explain differences in hair growth.
13 citations
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November 2012 in “PubMed” 5α-reductase inhibitors may worsen sexual drive and spontaneous erections but don't worsen existing erectile or ejaculatory problems.
12 citations
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January 2018 in “Journal of Drug Delivery Science and Technology” The new particle system could be a promising treatment for diseases related to the 5-α reductase enzyme.
8 citations
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January 2015 in “Genetics and molecular research” Researchers found four key proteins that affect the development of a specific hair type in Yangtze River Delta white goats.