Medically reviewed by Alan Lucks | MD, Alan Lucks MDPC Private Practice - New York on February 3rd, 2026.
Finasteride can regrow hair in 48% of men with male pattern baldness
Treatment requires 3-6 months for initial results, with peak benefits at 12-24 months
Most effective for men experiencing early stages of hair loss
Consistent use is crucial for maintaining hair regrowth results
Hair loss is a common concern for millions of people worldwide, with male pattern baldness being the most prevalent form of hair loss in men. Finasteride has emerged as a promising treatment option for those seeking to address this challenging condition. Understanding how this medication works and its potential for hair regrowth can help individuals make informed decisions about their hair loss treatment.
Finasteride works by targeting the hormonal root of hair loss, specifically by blocking the enzyme that converts testosterone into dihydrotestosterone (DHT). This hormone is primarily responsible for shrinking hair follicles and causing progressive hair loss. By reducing DHT levels in the scalp, the medication creates an environment that can potentially halt and even reverse hair loss.
Clinical studies have shown that finasteride can be remarkably effective in addressing hair loss. Approximately 65 percent of men experience either hair regrowth or stabilization of their existing hair over a five-year period. More specifically, about 48 percent of users observe visible hair regrowth, while the remaining percentage maintains their current hair density.
The regrowth process is nuanced and typically involves:
Increased hair count
Improved hair thickness
Enhanced overall hair density
Primarily effective in areas with miniaturized follicles
The journey with finasteride requires patience. Most users will not see immediate results, with the treatment timeline typically following this progression:
Treatment Stage |
Typical Observations |
|---|---|
0-3 Months |
Possible initial shedding |
3-6 Months |
First signs of new hair growth |
6-12 Months |
Noticeable improvement |
12-24 Months |
Peak treatment results |
Many men experience a "shedding phase" during the first few months, which can be concerning but is often a positive sign that the medication is working. The erectile dysfunction potential side effects should also be discussed with a healthcare provider.
Several key factors impact the effectiveness of finasteride:
Age of the patient
Stage of hair loss
Genetic predisposition
Consistency of use
Younger men typically see better results, especially those in the early stages of male pattern baldness. The medication works best when started before significant hair loss occurs.
While finasteride can be effective, potential side effects exist. Approximately 2-4 percent of users report:
Decreased libido
Erectile challenges
Reduced ejaculate volume
Breast enlargement
Skin rash
Dizziness
Most side effects are mild and reversible upon discontinuing the medication. Consulting with a healthcare professional is crucial to understand individual risks and potential benefits.
No treatment works for everyone. About 48% of men see noticeable regrowth, while others may simply halt further hair loss.
Continuous use is required to maintain results. Stopping the medication will likely result in resumed hair loss within 6-12 months.
The medication is typically not recommended for women, especially those who are pregnant or may become pregnant.
Coverage varies. Many insurance plans consider it a cosmetic treatment and may not provide full coverage.
Most users notice initial changes between 3-6 months, with optimal results at 12-24 months.
Finasteride offers a scientifically-backed approach to addressing hair loss, with potential for meaningful results for many men. However, individual experiences vary, and realistic expectations are crucial. Care you can trust. Doctronic is clinically validated with 99% treatment plan alignment.
Hair loss is a common concern for millions of people worldwide, with male pattern baldness being the most prevalent form of hair loss in men. Finasteride has emerged as a [...]
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