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the claim

Finasteride reduces hair loss in men with male pattern baldness.

the verdict
SUPPORTED
the evidence backs this
Recorded sources
8 sources for · 0 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Is it true that Finasteride reduces hair loss in men with male pattern baldness?

Yes. Multiple sources, including meta-analyses and randomized trials, report that finasteride slows or reduces further hair loss in men with male pattern baldness, with some regrowth.

Verdict: SUPPORTED · 8 sources for, 0 against · Last checked

The private library was unavailable for some searches in this check. Missing library results are not evidence against the claim.

Evidence for · 8
Finasteride
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Finasteride. (n.d.). en.wikipedia.org. https://en.wikipedia.org/wiki/Finasteride

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More for · 7
Does Finasteride reduce hair loss?
2012
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Does Finasteride reduce hair loss?. (2012). skeptics.stackexchange.com. https://skeptics.stackexchange.com/questions/9945/does-finasteride-reduce-hair-loss

A review of the treatment of male pattern hair loss
2020
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York, K., Meah, N., Bhoyrul, B., & Sinclair, R. (2020). A review of the treatment of male pattern hair loss. doi.org. https://doi.org/10.1080/14656566.2020.1721463

Finasteride improves male pattern hair loss in a randomized study in identical twins.
2002
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Finasteride improves male pattern hair loss in a randomized study in identical twins.. (2002). pubmed.ncbi.nlm.nih.gov. https://pubmed.ncbi.nlm.nih.gov/11809593

Can reducing DHT by dietary means reduce or reverse hair loss?
2015
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Can reducing DHT by dietary means reduce or reverse hair loss?. (2015). skeptics.stackexchange.com. https://skeptics.stackexchange.com/questions/28865/can-reducing-dht-by-dietary-means-reduce-or-reverse-hair-loss

Maintenance of optimised hair growth from viable terminal scalp hair follicles at baseline with oral finasteride in male pattern hair loss and first evidence of a “drug dependency” and a post‐finasteride “rebound effect”
2019
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Neste, D. V. (2019). Maintenance of optimised hair growth from viable terminal scalp hair follicles at baseline with oral finasteride in male pattern hair loss and first evidence of a “drug dependency” and a post‐finasteride “rebound effect”. doi.org. https://doi.org/10.1111/srt.12707

Pharmacological inhibition of 5α-reductase in androgenetic alopecia: a comparative narrative review of finasteride and dutasteride, with attention to responder heterogeneity and female pattern hair loss
2026
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Pharmacological inhibition of 5α-reductase in androgenetic alopecia: a comparative narrative review of finasteride and dutasteride, with attention to responder heterogeneity and female pattern hair loss. (2026). doi.org. https://doi.org/10.5281/zenodo.20507737

Effectiveness of Combined Oral Minoxidil and Finasteride in Male Androgenetic Alopecia: A Retrospective Service Evaluation
2025
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Johnson, H., Huang, D., Clift, A., Bersch-Ferreira, Â., & Guimarães, G. A. (2025). Effectiveness of Combined Oral Minoxidil and Finasteride in Male Androgenetic Alopecia: A Retrospective Service Evaluation. doi.org. https://doi.org/10.7759/cureus.77549

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