These are the two treatments with real evidence behind them for pattern hair loss, and they are usually presented as a choice.
They should not be. They do genuinely different jobs — one addresses why hair is thinning, the other addresses how much hair grows.
The most useful thing to understand is why using both beats using either.
Both act on the pore row — in hair terms, the follicle — and that shared row hides how differently they get there. Finasteride removes the hormonal cause of miniaturization. Minoxidil extends the growth phase of whatever follicles remain, with no effect on the hormone shrinking them. That is why one is protective and the other is productive, and why the two together outperform either.
Stopping further loss | Finasteride | Strong
This is the job it does and minoxidil does not. It blocks the conversion of testosterone to DHT, the hormone that shrinks follicles over time.
Regrowing hair you have already lost | Minoxidil | Strong
It extends the growing phase and thickens existing hairs. It works best on follicles that are miniaturized but not gone.
The hairline | Finasteride | Moderate
Minoxidil performs better at the crown than the frontal hairline. Finasteride works across both.
Speed | Minoxidil | Moderate
3–6 months, versus 6–12 months for finasteride. Both are slower than anyone wants.
Who can use it | Minoxidil | Consensus
Minoxidil is over the counter and used by both men and women. Finasteride is prescribed almost entirely to men; its use in women is limited and requires specialist supervision.
Convenience | Finasteride | —
A pill takes seconds. Minoxidil is twice daily, on the scalp, and can leave hair looking greasy or flaky — which is why adherence is a real problem.
Side effects | Minoxidil | Moderate
Minoxidil's are local: itching, flaking, and an initial shedding phase that alarms people but is temporary. Finasteride's are systemic and hormonal, uncommon but real, and should be discussed with a prescriber.
Cost | Roughly equal | —
Generic finasteride is inexpensive. Generic minoxidil is inexpensive. Neither is a financial barrier.
Different hair types | Either | Consensus
Both work regardless of hair texture. One practical note: the alcohol-based minoxidil liquid can irritate the scalp and dry textured hair — the foam is usually the better format.
Use both. This is the clearest "both" in hair loss treatment.
They address different halves of the same problem, and studies of the combination consistently beat either alone.
How it usually works:
- Finasteride: 1mg daily, to stop the underlying loss.
- Minoxidil: 5% foam once or twice daily, to maximize what you still have.
Start as early as you can. Both treatments are far better at keeping hair than at bringing back follicles that are already gone. The single biggest predictor of a good outcome is starting early.
Expect shedding first. Minoxidil commonly causes a shed in the first 2–8 weeks as follicles reset into a new growth phase. It is a sign it is working, not failing — but it is the point where most people quit.
Give it a year. Photographs beat memory. Take a picture at the start under consistent lighting, because gradual change is genuinely hard to judge in a mirror.
Stopping means losing the gains. Both are ongoing treatments. Hair gained generally goes within 6–12 months of stopping either.
Not everything is pattern loss. If shedding is sudden, patchy, or came with scalp symptoms, get a diagnosis first — these two treat one specific condition.