Male Pattern Hair Loss: Can Finasteride Help?
Part of the Access Doctor Male Hair Loss guide.
Start Finasteride Today
Complete a short online consultation reviewed by GPhC-registered pharmacist independent prescribers. Next-day delivery available.
Order Finasteride Online →What Is Male Pattern Hair Loss?
Male pattern hair loss — medically known as androgenetic alopecia — is the most common form of hair loss in men, accounting for around 95% of cases. It follows a characteristic pattern: the hairline recedes at the temples while the crown simultaneously thins. Over time, these areas may merge, leaving a horseshoe of hair around the back and sides of the head.
The underlying cause is a genetic sensitivity to dihydrotestosterone (DHT), a hormone derived from testosterone. In susceptible men, DHT binds to androgen receptors in scalp follicles and gradually miniaturises them — each hair cycle producing a thinner, shorter strand until the follicle eventually becomes dormant.
For a full overview, see our guide: What is male pattern baldness?
What Is Finasteride?
Finasteride is a prescription-only oral medication and the leading treatment for male pattern baldness in the UK and worldwide. Sold under the brand name Propecia, the 1mg daily tablet works by inhibiting the enzyme (5-alpha reductase type II) responsible for converting testosterone into DHT — reducing scalp DHT levels by up to 70% and halting the follicle miniaturisation process.
It has MHRA approval in the UK and FDA approval in the US specifically for the treatment of androgenetic alopecia in men. It has been in clinical use for over 25 years, giving it one of the most comprehensive long-term safety profiles of any hair loss treatment.
MHRA & FDA approved: Finasteride 1mg has dual regulatory approval for male pattern baldness — making it one of only a handful of hair loss treatments with that credential. Generic finasteride is equally effective as Propecia and considerably less expensive.
The Clinical Evidence: Does Finasteride Work?
The short answer is yes — and the evidence is robust. Pivotal clinical trials published in the Journal of the American Academy of Dermatology followed men with male pattern hair loss for five years.
85%
of men showed improvement — hair maintenance or regrowth — over 5 years of finasteride use
65%
of finasteride users experienced visible hair regrowth, not just a slowing of loss
70%
reduction in scalp DHT levels achieved with 1mg finasteride taken daily
- Hair counts were significantly higher than baseline after 2 years in the treatment group
- The placebo group continued to lose hair throughout the 5-year period
- Results were most pronounced at the vertex (crown) but also meaningful at the frontal hairline
- Benefits were sustained for as long as treatment was continued
Key principle: Finasteride is most effective when started early. Once follicles have been dormant for an extended period, they are unlikely to respond to treatment. The earlier you start, the more hair you can preserve — and potentially regrow.
How to Take Finasteride
Finasteride 1mg is taken orally once daily, with or without food. Consistency is essential — taking it at the same time each day helps maintain steady DHT suppression. If you miss a dose, take it as soon as you remember the same day; do not double up the following day.
It must be taken continuously. If you stop treatment, the DHT-blocking effect ends and hair loss typically resumes within 6–12 months.
Temporary initial shedding is normal. In the first 1–3 months of treatment, some men notice increased shedding as the hair cycle resets. This is a known effect and not a sign that finasteride is failing. It typically resolves and is followed by the stabilisation and improvement phase.
| Timeframe | What to expect |
|---|---|
| 0–3 months | Initial phase — shedding may temporarily increase as the hair cycle resets. Normal and not a sign of failure. |
| 3–6 months | Most men notice reduced shedding. The rate of loss slows noticeably. |
| 6–12 months | Stabilisation. Some men begin to see early signs of regrowth at the crown or hairline. |
| 12–24 months | Visible regrowth, where it occurs, typically becomes clearly apparent. Maximum results in most users. |
| 2+ years | Ongoing maintenance of results with continued daily use. |
Finasteride Combined with Minoxidil
Finasteride and minoxidil (Regaine) work via entirely different mechanisms and are highly complementary. Finasteride removes the hormonal driver (DHT), while minoxidil directly stimulates follicle activity by widening blood vessels around follicles and prolonging the anagen (growth) phase.
| Finasteride | Minoxidil | |
|---|---|---|
| How it works | Reduces DHT systemically — removes the hormonal cause | Stimulates follicles topically — improves blood flow and follicle activity |
| Form | Daily oral tablet (1mg) | Liquid or foam applied to scalp twice daily |
| Prescription needed? | Yes | No — over the counter |
| Efficacy alone | High — 85% improvement over 5 years | Moderate |
| Combined efficacy | Significantly better than either treatment alone | |
Used together, finasteride and minoxidil represent the most effective non-surgical approach to male pattern baldness currently available. See: Male Balding: Your Complete Treatment Guide.
Side Effects & Safety
Finasteride 1mg has a well-established safety profile built over 25+ years of clinical use. The most discussed potential side effects are sexual in nature, occurring in approximately 1–2% of users at the 1mg dose:
- Decreased libido — uncommon; usually resolves on stopping or over time
- Erectile dysfunction — similarly rare at the 1mg hair loss dose
- Reduced ejaculate volume — uncommon
Important safety note (2025 EMA update): The European Medicines Agency confirmed that suicidal thoughts can occur as a very rare side effect. If you experience mood changes or thoughts of self-harm while taking finasteride, stop immediately and contact your GP. In a medical emergency call 999.
Not for women: Finasteride must not be taken or handled by women, particularly those who are pregnant or may become pregnant, due to the risk of foetal abnormality. Always store securely out of reach.
How to Get Finasteride in the UK
Finasteride is a prescription-only medicine and cannot be purchased over the counter. Access Doctor is a GPhC-registered online pharmacy (registration number 9011198). Complete a short online medical consultation, reviewed by our GPhC-registered pharmacist independent prescribers. If approved, your finasteride is dispatched in discreet packaging — typically arriving via Royal Mail Tracked 24 the next working day for orders before 3pm.
Prescription · Rx
Finasteride 1mg
MHRA-approved oral tablet. Reduces scalp DHT by up to 70%. 85% improvement rate over 5 years.
Order Finasteride →Prescription · Rx
Propecia (Branded)
Branded finasteride 1mg. Same active ingredient and clinical evidence as generic.
Order Propecia →Over the Counter
Regaine for Men
Minoxidil 5% extra strength solution. Stimulates follicles. Best combined with finasteride.
View Regaine →Access Doctor provides prescription finasteride following a short online assessment. No GP referral required. Discreet next-day delivery.
View All Hair Loss Treatments →Frequently Asked Questions
Is finasteride the best treatment for male pattern hair loss?
Finasteride is the most clinically effective oral treatment and is widely considered the first-line prescription option. It has an 85% improvement rate over 5 years in clinical trials and is MHRA and FDA approved for this specific use. Combined with minoxidil, results are significantly better than either treatment alone.
Can finasteride regrow lost hair?
Yes — around 65% of men in clinical trials experienced visible regrowth. Finasteride is most effective when started before significant follicle miniaturisation has occurred. Follicles that have been completely dormant for a long time are unlikely to respond, which is why early treatment matters.
How is finasteride taken?
Finasteride for hair loss is taken as a 1mg oral tablet once daily, with or without food, at the same time each day. It must be taken continuously — stopping treatment leads to hair loss resuming within 6–12 months.
Can I combine finasteride with minoxidil?
Yes — combining finasteride and minoxidil is considered the most effective non-surgical approach to male pattern baldness. They work through different mechanisms and their effects are complementary. Many men use both together for optimal results.
What are the side effects of finasteride?
Sexual side effects (decreased libido, erectile dysfunction) occur in 1–2% of men at the 1mg hair loss dose and typically resolve on stopping. In 2025, the EMA confirmed suicidal thoughts as a very rare side effect — stop and contact your GP if mood changes occur.
How do I get a finasteride prescription in the UK?
Access Doctor is a GPhC-registered online pharmacy (registration number 9011198). Complete a short medical consultation reviewed by GPhC-registered pharmacist independent prescribers. If approved, finasteride is dispatched for next-day delivery in discreet packaging.
References
- Kaufman KD, et al. Finasteride in the treatment of men with androgenetic alopecia. Journal of the American Academy of Dermatology. 1998;39(4):578–589. pubmed.ncbi.nlm.nih.gov/9777765
- NICE. Alopecia — androgenetic. Clinical Knowledge Summaries. cks.nice.org.uk/topics/alopecia
- NHS. Hair loss. nhs.uk/conditions/hair-loss
- Electronic Medicines Compendium. Finasteride 1mg tablets — SmPC. medicines.org.uk/emc
Medical disclaimer: This article is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional regarding your symptoms and treatment. Finasteride is a prescription-only medicine — a clinical consultation is required before it can be dispensed. In a medical emergency, call 999.