Two Treatments, Two Different Jobs
Finasteride and minoxidil are the only two medications FDA-approved for pattern hair loss, and they attack the problem from opposite angles. Finasteride blocks DHT — the hormone that shrinks genetically susceptible follicles — so it stops loss at the source. Minoxidil doesn't touch hormones at all; it stimulates follicles and extends the growth phase by improving blood flow to the scalp. Because they work through different mechanisms, they're not really competitors — they're a team.
Finasteride: Stopping Loss at the Source
Finasteride is a daily oral pill (1mg) that reduces scalp DHT by around 60–70%. In studies, roughly 90% of men either stopped losing hair or regrew some, making it the most effective single treatment for slowing male pattern baldness. It's men-only and takes 3–6 months to show effect. Learn more in does finasteride work and finasteride side effects.
Minoxidil: Stimulating Regrowth
Minoxidil (the active ingredient in Rogaine) is a topical foam or solution — and increasingly a low-dose oral pill — that works for both men and women. It won't stop the hormonal cause of hair loss, but it can thicken and regrow hair by keeping follicles in their active growth phase longer. See does minoxidil work for what to expect.
Which Should You Choose?
For men with male pattern baldness, finasteride is usually the foundation because it addresses the cause. Minoxidil is often added for extra regrowth — and studies show the combination works better than either alone. Women, who can't use finasteride, typically start with minoxidil. Not sure where to start? Take our quick quiz or compare providers like Hims vs Keeps, both of which offer either or both.