66 citations
,
June 2013 in “Journal of Dermatological Treatment” Finasteride and dutasteride effectively treat hair loss, but may cause side effects like sexual dysfunction and depression.
38 citations
,
January 2002 in “Biological & Pharmaceutical Bulletin” Lygodii Spora extract may help treat hair loss by blocking a hair loss-related enzyme and promoting hair growth.
23 citations
,
January 2001 in “Chemical & Pharmaceutical Bulletin” New pregnane derivatives are effective at inhibiting an enzyme linked to hair loss and reducing oil gland activity.
December 2025 in “Instituto Politécnico do Porto” Patients with mood disorders using 5α-reductase inhibitors may have a higher risk of suicidal thoughts.
January 2025 in “International Journal of Dermatology Research” Anagen grow may effectively treat hair loss by blocking testosterone and reducing enzyme activity.
30 citations
,
October 2020 in “Nature Communications” Finasteride irreversibly affects human steroid 5α-reductase 2, providing insight into its catalytic mechanism and disease-related mutations.
13 citations
,
June 2017 in “Biochimie open” All five human steroid 5α-reductase enzymes are found in the endoplasmic reticulum.
11 citations
,
December 2018 in “Assay and Drug Development Technologies” Natural herbal compounds might treat certain medical conditions by reducing DHT levels, but more research is needed to confirm their effectiveness and safety.
6 citations
,
July 2024 in “Heliyon” Steroid 5α-reductase evolved from protists and diversified in eukaryotes, with specific roles in mammals and plants.
September 2022 in “Annals of medicine and surgery” Three siblings with a rare genetic condition had abnormal sexual development and chose different gender identities, needing surgery and therapy.
December 2023 in “International Journal of Molecular Sciences” Men with early balding showed higher levels of certain genes linked to hair loss and possibly prostate cancer.
August 2023 in “Malaysian Journal of Medicine and Health Sciences/Malaysian journal of medicine and health sciences” Pueraria mirifica extract may help treat benign prostatic hyperplasia.
30 citations
,
June 2010 in “Endocrine Related Cancer” SRD5A1 is crucial in advanced prostate cancer, and blocking both SRD5A1 and SRD5A2 is more effective than targeting SRD5A2 alone.
50 citations
,
March 2017 in “PeerJ” Using finasteride or dutasteride may cause long-lasting erectile dysfunction.
45 citations
,
August 2010 in “Hormone Molecular Biology and Clinical Investigation” Type 3 5α-reductase is more common and finasteride and dutasteride strongly inhibit it.
34 citations
,
February 1993 in “Journal of steroid biochemistry and molecular biology/The Journal of steroid biochemistry and molecular biology” Certain 4-azasteroids are effective at blocking the enzyme that processes testosterone in human skin and could help treat acne, excessive hair growth, and male pattern baldness.
32 citations
,
April 1999 in “Expert Opinion on Investigational Drugs” Finasteride effectively treats male hair loss, improving growth and density.
28 citations
,
January 1991 in “Reproductive Toxicology” Finasteride temporarily lowers male rat fertility without affecting libido.
12 citations
,
February 1997 in “British Journal of Dermatology” The enzyme type 1 5α-reductase is more active in the hair follicle's lower part than in the skin's outer layer.
1 citations
,
October 2025 in “EBioMedicine” Women have a higher DHT/testosterone ratio than men, possibly due to gut bacteria activity.
1 citations
,
February 2023 in “Plants” BB4CMU rice bran oil may help treat hair loss and gray hair.
December 2023 in “Biointerface Research in Applied Chemistry” Stiripentol shows promise as a potential treatment for androgen-related diseases but needs more testing.
December 2022 in “Scientific Reports” Compound 4 is a promising treatment for hair loss with low toxicity.
122 citations
,
July 1990 in “Teratology” Finasteride exposure in pregnancy causes genital abnormalities in male rats.
35 citations
,
March 2013 in “American Journal of Medical Genetics Part B Neuropsychiatric Genetics” SRD5A2 gene variations affect PTSD symptoms differently in males and females.
4 citations
,
December 2017 in “PubMed” Minoxidil may help treat hair loss by reducing the activity of a specific enzyme linked to baldness.
44 citations
,
January 2007 in “Biological & pharmaceutical bulletin” Black pepper leaf extract contains compounds that can block testosterone effects and promote hair growth.
35 citations
,
February 1994 in “Fundamental and applied toxicology” High doses of finasteride cause cell growth and tumors in mice.
27 citations
,
February 2005 in “Journal of Cellular Biochemistry” Male cells need DHT to respond to testosterone, while female cells do not.
21 citations
,
January 2010 in “JOURNAL OF HEALTH SCIENCE” Abietic acid from pine resin can effectively inhibit testosterone 5α-reductase.