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Head-to-head evidence comparison — which supplement is right for you?
Finasteride wins 2 of 3 categories. Both are solid choices — the best pick depends on your specific goals.
Verdict
Mostly mechanism / observational
Top outcomes
Verdict
Mostly mechanism / observational
Top outcomes
Shared outcomes (1)
Outcomes where both Dutasteride and Finasteride have evidence — compare verdict strength side-by-side.
Approved BPH dose is 0.5 mg once daily; off-label hair-loss use mirrors the same 0.5 mg once-daily dose under a clinician. A prescription drug.
anytime
Oral soft-gel capsule (dutasteride 0.5 mg)
1 mg once daily for male pattern hair loss (Propecia); 5 mg once daily for benign prostatic hyperplasia (Proscar). A prescription drug — use under a clinician.
any
Oral tablet (1 mg for hair, 5 mg for BPH)
3–6 months
Months
Years
Weeks; may persist
3-12 months to visible effect
Months to years
Throughout use; sometimes persistent
Throughout use
The importance of dual 5alpha-reductase inhibition in the treatment of male pattern hair loss: results of a randomized placebo-controlled study of dutasteride versus finasteride.
Journal of the American Academy of Dermatology (2006) · Rct · n=416
Randomized placebo-controlled trial of 416 men comparing dutasteride doses, finasteride 5 mg, and placebo over 24 weeks
Efficacy, safety, and tolerability of dutasteride 0.5 mg once daily in male patients with male pattern hair loss: a randomized, double-blind, placebo-controlled, phase III study.
Journal of the American Academy of Dermatology (2010) · Rct · n=153
Phase-III randomized double-blind placebo-controlled trial of 153 men over 6 months
The effects of combination therapy with dutasteride and tamsulosin on clinical outcomes in men with symptomatic benign prostatic hyperplasia: 4-year results from the CombAT study.
European urology (2010) · Rct · n=4844
CombAT: 4-year multicenter randomized double-blind trial in 4844 men with symptomatic BPH and prostatic enlargement
Finasteride in the treatment of men with androgenetic alopecia.
Journal of the American Academy of Dermatology (1998) · Rct · n=1553
Pivotal double-blind randomized, placebo-controlled trials of finasteride 1 mg/day for male pattern hair loss
Long-term (5-year) multinational experience with finasteride 1 mg in the treatment of men with androgenetic alopecia.
European journal of dermatology : EJD (2002) · Rct · n=1553
Five-year placebo-controlled extension of the pivotal Phase III hair-loss trials
The impact of monotherapies for male androgenetic alopecia: A network meta-analysis study.
Journal of cosmetic dermatology (2024) · Meta analysis
Network meta-analysis of monotherapies for male androgenetic alopecia
Finasteride has a higher evidence score (5.5/10 vs 5.4/10) and wins in 2 of 3 categories.
No known interactions between Dutasteride and Finasteride have been documented in our database. However, always consult a healthcare provider before combining supplements.