Finasteride works by inhibiting the enzyme 5-alpha-reductase. This enzyme converts testosterone into dihydrotestosterone (DHT), a hormone strongly implicated in male pattern baldness.
Specifically, Finasteride targets the type II isoenzyme of 5-alpha-reductase, which is predominantly found in the scalp. By blocking this enzyme, Finasteride significantly reduces DHT levels in the scalp.
- Lower DHT levels lead to a decrease in hair follicle miniaturization. This miniaturization is the primary cause of hair thinning and loss in androgenetic alopecia. Reduced DHT allows follicles to maintain their size and produce thicker, healthier hair.
The impact on hair growth is gradual and not immediate. Many men see improvement after several months of consistent use. Results vary, depending on individual factors.
The degree of hair loss before treatment. Genetic predisposition. Age. Overall health.
Remember, Finasteride primarily prevents further hair loss and promotes regrowth. It’s not a cure for baldness, and cessation of treatment often leads to a return to previous hair loss patterns.
Consult a dermatologist or healthcare professional to determine if Finasteride is appropriate for you and to discuss potential side effects and interactions with other medications.
