Topical Finasteride doesn't directly reduce 5ar enzyme on scalp and has the same mechanism as oral, needing to go through the liver. Users debate the accuracy of this information and discuss various studies and experiences.
Dutasteride is likely the most effective treatment for male pattern baldness, followed by finasteride and minoxidil in various forms and dosages. Users discuss personal experiences, dosages, and potential side effects, with some considering combining treatments for better results.