Does Finasteride Regrow Hair?

Yes, for a significant majority of men with male pattern baldness (androgenetic alopecia), finasteride does more than just halt hair loss—it actively promotes new hair regrowth. However, your results depend heavily on where you are losing hair, how long you take the medication, and ensuring you use the clinically proven dosage.

To achieve finasteride regrowth, precision matters. The clinically approved and recommended dose for finasteride to regrow hair is 1mg daily.

Finasteride works by acting as a 5-alpha reductase inhibitor. This means it blocks the enzyme responsible for converting free testosterone into dihydrotestosterone (DHT). DHT is the primary hormone responsible for shrinking hair follicles and causing male pattern baldness.

By taking a daily 1mg dose, you can lower the DHT levels in your scalp by up to 70%. This massive reduction in DHT relieves the hormonal pressure on your hair follicles. Once the follicles are no longer under constant attack, miniaturized (shrunken) hairs can return to their normal, thicker terminal state, leading to visible regrowth.

Note: Taking a higher dose does not speed up hair growth. Stick to the 1mg prescription for optimal safety and efficacy.

Further reading: Does finasteride work?

Data from clinical trials saw many men experience hair regrowth with finasteride.

• After 12 months: 48% of men had visible hair regrowth
• After 2 years: 66% of men had regrowth
• After 5 years: 48% still showed increased hair growth compared to baseline

In regard to slowing further hair loss, data from clinical trials demonstrated that finasteride can slow the progression of hair loss, even if hair regrowth is limited.

• After 1 year: only 14% of men on finasteride continued to lose hair (vs 58% on placebo)
• After 2 years: 17% continued to lose hair (vs 72% on placebo)
• After 5 years: 35% lost more hair (vs 100% on placebo)

Source: Kaufman KD et al. Finasteride in the treatment of men with androgenetic alopecia.
Finasteride Male Pattern Hair Loss Study Group. Long-term (5-year) multinational experience with finasteride 1mg in the treatment of men with androgenetic alopecia.

If you are experiencing thinning at the vertex (the crown of your head), you are in the best possible position for finasteride to work.

Clinical trials consistently show that finasteride crown regrowth is far more successful than regrowth at the frontal hairline or temples.

The Statistics:

• At 1 Year: Research shows that 48% of men with crown hair loss experience visible hair regrowth after 12 months of daily 1mg finasteride use.

• At 2 Years: This number improves significantly over time. After two years of continuous use, 66% of men achieve visible regrowth at the crown.

• Overall Efficacy: Over 80% of men taking the medication will experience no further hair loss at the crown after two years.

Why is the crown so responsive?

The hair follicles located at the vertex of the scalp are highly sensitive to DHT. Because finasteride’s primary mechanism is reducing scalp DHT, the crown experiences the most dramatic relief. Hairlines and temporal recession are generally more resistant to DHT-blocking treatments, though finasteride is still highly effective at preventing the hairline from receding further.

Finasteride can regrow hair in some men, especially around the crown and mid-scalp. Clinical studies show that many men see visible improvement over 12 to 24 months, while many more benefit from slowing or stopping further hair loss.

The best results are usually seen when finasteride is started early, before follicles have stopped producing hair completely. If the crown is thinning but not fully bald, finasteride may help improve density and reduce further loss.

Finasteride does not work overnight, and results need to be maintained with ongoing treatment. You should also understand the possible side effects before starting and speak to a prescriber if you have any concerns.