
Finasteride works by blocking 5-alpha reductase, an enzyme involved in converting testosterone into DHT.
In people with androgenetic hair loss, DHT can gradually shrink susceptible hair follicles, resulting in thinner, shorter hairs over time.
By reducing DHT activity, Finasteride can help slow further hair loss, preserve existing hair, and support improved growth and density with continued treatment.
With consistent treatment, Finasteride may support:
• Reduced hair shedding
• Slower progression of thinning
• Better hair retention
• Improved density over time
• Regrowth in responsive areas
Hair treatment takes patience. FDA labeling notes that three months or more of daily treatment may be needed before benefit is observed, and continued treatment is generally needed to maintain results.
Your provider will review your hair-loss pattern, medical history, medications, and treatment goals before prescribing.
Discuss sexual side effects, fertility concerns, mood changes, liver conditions, and any previous reaction to Finasteride. Women who are or may become pregnant should not handle crushed or broken finasteride tablets because of potential risk to a male fetus.