That is simply not true, with Androgenetic Alopecia it's always on a case by case basis. I started balding at 17,but it has been very slow, at 25 now I am a nw2 will probably be a nw3 by 30 or a little before that and I know tons of people with an identical progress of Androgenetic Alopecia. A friend of mine had perfect hair up to 23 than he started balding and in 2 years lost pretty much everything. There are guys who bald slowly their whole life just like there are guys who lose it all in a year or two. Some start balding at 17 and go nw2 or 3 and then stop there. There are also guys who have good hair until their 30 and then in a 3 year span lose everything.
The premise of younger guys responding better is based on 2 things, 1 an assumption about Androgenetic Alopecia, and 2 a pretty much proven fact about all medication. The proven fact is that pretty much every treatment has a higher success rate on young people for a multitude of reasons and the assumption is that more important than how fast you bald is how much time has elapsed since you became bald. As in a lot of people think that if you are 20 and you go totally bald in 2 months you would have a higher chance on having results on min+finasteride than a guy who is 50 and has been slowly crawling to a nw4.
oh okay so basically.. if your balding process is slow your chance are smaller than if it was pretty quick ?
so finasteride has not worked so great on you since your balding process is pretty slow ?
(but i still that my comment was not sooo stupid haha.. no ? Only talking about finasteride, The drug is based on suppressing % of DHT, so men in their 20's surely have more than 50's year old men)