It doesn't make any logical sense. DHT has been identified as the primary agent in male pattern baldness. Dutasteride 0.5mg/day decreases serum DHT 91% and scalp DHT 54%. Finasteride 5mg/day decreases serum DHT 71% and scalp DHT 38%. Based on these results, dutasteride should be more effective in the treatment of male pattern baldness than finasteride, whoever takes it.