Finasteride Before And After: A Comprehensive Guide to Hair Loss Treatment

Alan Lucks | MD

Medically reviewed by Alan Lucks | MD, Alan Lucks MDPC Private Practice - New York on February 10th, 2026.

Key Takeaways

  • Finasteride can effectively slow or stop male pattern baldness

  • Treatment results vary based on individual factors

  • Most users see noticeable improvements within 6-12 months

  • Combination treatments often provide best results

Hair loss can be a challenging and emotionally sensitive issue for many men. Finasteride, a prescription medication originally developed to treat prostate conditions, has become a popular solution for male pattern baldness. While individual results can vary, many men have experienced significant improvements in hair density and appearance.

Understanding how prevent hair loss is crucial for anyone experiencing thinning hair. Finasteride works by blocking the conversion of testosterone to dihydrotestosterone (DHT), a hormone responsible for male pattern baldness.

How Finasteride Works

Finasteride targets the root cause of male pattern baldness by inhibiting the enzyme that produces DHT. This hormone shrinks hair follicles and accelerates hair loss. By reducing DHT levels, hair loss treatment options like finasteride can help slow down or even reverse the balding process.

Typical Treatment Process

Most men start with a 1mg daily dose of finasteride. The medication is typically taken orally and requires consistent use to maintain results. Many physicians recommend combining finasteride with topical treatments like minoxidil for optimal outcomes.

Expected Results Timeline

Patients typically see initial results within 3-6 months, with more significant improvements visible around 12-18 months. Some key observations include:

  • Slowed hair loss

  • Increased hair thickness

  • Potential hair regrowth in thinning areas

  • Improved overall hair density

Potential Side Effects and Considerations

While medical treatment options for hair loss are generally safe, finasteride can have side effects. A small percentage of men report sexual dysfunction, breast tenderness, weakness, dizziness, or mood changes.

Treatment Effectiveness Comparison

Treatment

Success Rate

Average Cost

Treatment Duration

Finasteride Alone

65-90%

$30-$60/month

Ongoing

Finasteride + Minoxidil

80-95%

$50-$80/month

Ongoing

Hair Transplant

90-100%

$4,000-$15,000

One-time procedure

Factors Affecting Treatment Success

Individual results depend on multiple factors, including:

  • Age

  • Extent of hair loss

  • Genetics

  • Overall health

  • Consistency of treatment

Frequently Asked Questions

Most men see initial results within 3-6 months, with significant improvements by 12 months.

Most studies indicate it's safe when monitored by a healthcare professional.

It's typically not recommended for women, especially those who are pregnant or may become pregnant.

Hair loss will likely resume within 6-12 months of discontinuing the medication.

Some supplements may help, but they're generally less effective than prescription treatments.

The Bottom Line

Hair loss treatment is personal and complex. While finasteride offers promising results for many men, consulting with a healthcare provider is crucial to determine the best approach for your specific situation.

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