Finasteride in Hair Restoration Whitepaper (2026) – Evidence & Safety Guide

This scientific whitepaper, authored by Op. Dr. Ahmet Dilber, provides an evidence-based overview of finasteride for androgenetic alopecia (male pattern hair loss). It explains how DHT suppression via 5α‑reductase inhibition supports hair loss stabilization, what clinical evidence suggests, and how responsible use, monitoring, and informed decision-making should be approached in hair restoration. Finasteride is a prescription medication; this document is for educational purposes and does not replace medical advice.

What’s Included in This Whitepaper?

• What finasteride is and how it works: DHT, 5α‑reductase, and follicle miniaturization
• Evidence-based expectations: timelines, response evaluation, and long-term use considerations
• Safety overview: clinical trial findings vs post‑marketing reports (clear, patient-friendly explanations)
• Sexual side effects: incidence, counseling approach, and practical monitoring guidance
• Mood and mental health considerations: warning signs and when to seek medical help
• Fertility and reproductive counseling considerations (including pregnancy handling precautions)
• PSA and prostate screening considerations: why disclosure matters in medical follow-up
• Oral vs topical finasteride: current evidence, formulation uncertainties, and how it fits into transplant planning

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About the Author

Op. Dr. Ahmet Dilber is a Plastic Surgeon specializing in advanced hair restoration planning, facial proportion analysis, and high‑precision follicular unit extraction. As a member of the Hair of Istanbul Medical Team, he contributes to evidence-based patient education and develops clinically grounded, safety‑focused protocols for international hair restoration patients.