Finasteride 5mg works by inhibiting the enzyme 5α-reductase. This enzyme converts testosterone into dihydrotestosterone (DHT), a hormone that plays a significant role in male pattern baldness. By blocking 5α-reductase, Finasteride reduces DHT levels in the scalp. Lower DHT levels slow hair loss and may even promote hair regrowth in some men. The reduction in DHT is primarily seen in the scalp, minimizing systemic effects.
Specific Enzyme Inhibition
Finasteride is a highly specific inhibitor of the type II isoenzyme of 5α-reductase, which is predominantly responsible for DHT production in the scalp. This specificity contributes to a relatively lower risk of side effects compared to non-specific inhibitors.
Clinical Implications
Studies show that Finasteride significantly improves hair count and reduces hair loss progression. Results vary depending on individual factors like age, genetic predisposition, and treatment duration. Consistent use is key for optimal results. Consult your doctor for personalized advice and monitoring.
