for the people who say that finasteride or dutasteride dont work, then it may not work well yes
but its also dependent on the dosages and vehicle, hair length etc.. probably half of the people here are not getting that right
Also, half of the people discussing CB here havent really used it anyway and have no real idea on how it works
CB is expensive so most guys aren't using enough probably
Or hoping for some "regrowth" which does not happen with anti androgen in general
CB is targeted at the guys who would have had decent maintenance on finasteride/dutasteride but are not using it due to sides or fear of sides, - this group alone is about 90% of guys with male pattern baldness in the world, and also it works much better at protecting the hairline over time since it blocks T and not only DHT...a 3 month study isn't going to prove that but try using finasteride/dutasteride for 10 years and you will see how things go downhill over the years at the hairline.
I have yet to read a post of a longtime finasteride user saying that his hairline remained unchanged for 10 years..not possible because of T