13 citations
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November 2019 in “Scientific reports” Certain drugs change freshwater snail shells to a "banana" shape.
60 citations
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December 1998 in “Clinical Pharmacology & Therapeutics” Both drugs lower DHT levels, with GI198745 being more effective.
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.
32 citations
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April 1999 in “Expert Opinion on Investigational Drugs” Finasteride effectively treats male hair loss, improving growth and density.
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.
79 citations
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January 2017 in “Dermatology practical & conceptual” Correcting nutrient deficiencies may help with hair loss, but the benefits of supplements without a deficiency are uncertain and could be harmful.
27 citations
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May 2015 in “Neuropharmacology” Dutasteride protects dopamine neurons in Parkinson's mice, but Finasteride doesn't.
3 citations
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May 2014 in “InTech eBooks” Copper deficiency may cause hair loss, and treating it could involve nutrition and hormones.
Iron deficiency anemia can cause itching, which often improves with iron supplements.
27 citations
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January 2017 in “Neuropsychopharmacology” The enzyme 5α-reductase is key in causing psychotic-like effects from sleep deprivation.
71 citations
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November 2012 in “Expert Opinion on Drug Safety” 5-alpha reductase inhibitors can cause sexual side effects like erectile dysfunction and reduced sexual desire, sometimes lasting after stopping the drug.
34 citations
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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.
1 citations
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September 2025 in “Cureus” ChatGPT-5 can pass the endocrinology exam but isn't fully reliable for clinical decisions yet.
1 citations
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September 2016 in “Actas Dermo-Sifiliográficas” 5-alpha reductase inhibitors may cause sexual side effects, breast complications, and other health risks in men with hair loss.
35 citations
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April 2013 in “Sexual medicine reviews” 5-alpha reductase inhibitors slightly increase the risk of sexual and mood side effects, and breast growth in men.
33 citations
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January 2016 in “Skin appendage disorders” The document concludes that sexual and psychiatric side effects from 5-alpha-reductase inhibitors are reported, but more high-quality research is needed to understand how often they occur.
27 citations
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April 2011 in “Folia Histochemica et Cytobiologica” DHT deficiency can disrupt cell connections in rat testes, possibly affecting fertility.
14 citations
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April 2021 in “Biology” Thai rice bran extracts, especially from Tubtim Chumphae rice, can significantly reduce the activity of hair loss genes, with x-tocopherol showing potential as an anti-hair loss product.
1 citations
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February 2024 in “Pharmacognosy Journal” Fenugreek seed extract boosts testosterone and improves male reproductive health without heart side effects.
1 citations
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June 2011 in “Journal of The American Academy of Dermatology” Iron deficiency is common in women regardless of hair loss, and treating it does not usually reverse hair loss.
19 citations
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January 2016 in “Annals of Dermatology” Dutasteride is safe and effective for treating hair loss, but may decrease libido.
40 citations
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July 2015 in “Journal of Cellular Biochemistry” Cysteine helps maintain keratin production in skin cells even when iron is low.
4 citations
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June 2015 in “Journal of Genetics/Journal of genetics” Genetic differences within ethnic groups may affect prostate cancer treatment effectiveness.
December 2025 in “International Neurourology Journal” Alpha-blockers and 5-alpha reductase inhibitors don't significantly increase dementia risk.
88 citations
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January 2004 in “Journal of Neuroscience” Neurosteroids regulate synaptic inhibition in the spinal cord and may help manage spinal pain.
7 citations
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January 2019 in “Pharmaceutical Biology” Eclipta prostrata helps hair growth and maintains the growth phase by affecting certain growth factors.
4 citations
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September 2010 in “Medical Hypotheses”
14 citations
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October 2018 in “PloS one” Deleting the Far2 gene in mice causes sebaceous gland issues and patchy hair loss.
16 citations
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January 2016 in “Annals of Dermatology” Green tea component EGCG may help prevent hair loss by changing microRNA levels in certain scalp cells.
June 2017 in “The Journal of Clinical Endocrinology and Metabolism” Finasteride's sexual side effects not caused by androgen deficiency or SRD5A inhibition.