Finasteride and minoxidil do completely different things.
- Finasteride reduces DHT, the hormone driving follicle miniaturisation. It addresses the cause and is primarily protective — it slows or halts further loss.
- Minoxidil acts locally on the follicle, prolonging the growth phase and improving blood supply. It is primarily stimulatory — it can thicken and regrow hair.
Because the mechanisms are independent, the effects add up. Studies of combination therapy consistently show better outcomes than either alone, which is why most specialists treating pattern hair loss use both.
What to Expect From Each
Setting expectations correctly is most of the battle:
- Finasteride's main job is keeping what you have. "No change" is a success, not a failure.
- Minoxidil's main job is improving density in areas that still have viable follicles.
- Neither revives follicles that have been gone for years. Both work better started earlier.
Practical Routine
- Finasteride: one 1mg tablet daily, at whatever time you will reliably remember
- Minoxidil: applied to a dry scalp, typically twice daily for solution or per the product instructions for foam
There is no interaction requiring you to separate them. The practical constraint is habit: two treatments means two chances to drift, and both stop working when you stop.
The Timeline
- Weeks 2–8: possible increased shedding from minoxidil. Expected.
- Months 3–4: shedding settles; too early to judge anything.
- Months 6–12: the honest assessment point. Compare photographs taken in consistent lighting, not memories.
- Beyond 12 months: maintenance. Results continue only while treatment does.
Weighing the Risks Honestly
Adding finasteride adds its risk profile. The MHRA introduced a patient alert card in 2024 covering psychiatric and sexual side effects, and strengthened product information again in 2026 — including the point that sexual dysfunction can itself contribute to mood disorders, and may persist after stopping.
That is a real consideration for an elective treatment taken indefinitely. Some people reasonably choose minoxidil alone for exactly this reason, accepting a smaller effect for no hormonal exposure. That is a legitimate position, not a failure of nerve.
If you do take finasteride and develop depression or suicidal thoughts, MHRA advice is to stop and contact a doctor as soon as possible.
If You Are Going to Start One First
Starting them a few weeks apart makes it easier to attribute any side effect to the right medicine. It also spreads the adjustment. There is no clinical requirement to do it this way, but it is a sensible approach if you are cautious.
Cost
Two ongoing treatments means two ongoing costs, and this is indefinite. Price the combination as a 12-month total, including delivery and any consultation fees, and check what any introductory offer becomes at renewal. Generic finasteride and own-brand minoxidil contain the same active ingredients as the branded versions at a fraction of the price.
What Not to Add
Combination plans sold online often bundle supplements, "hair vitamins" and specialist shampoos. Those are where the margin is and where the evidence is not. The two treatments in this article are the ones that work; the rest is optional at best.