Is Propecia Good for the Top of the Scalp and Bad for the Hairline?

Hi doctor how are you?

This is my question regarding propecia.

Most people think only DHT destroys hair but the follicles are sensitive to testosterone as well. Its interesting to note the first thing that goes on most guys is the hairline mostly the juvenile hairline which is often made up of small vellus like hairs. This is because they are sensitive to testosterone more so than DHT. And we all know finasteride lowers DHT and raises testosterone.

Can that make a persons hairline even worse by trying propecia or can propecia help maintain it? Basically is propecia good for one thing on the scalp and bad for other areas such as the hairline.

I would really appreciate if you could answer my question, because I have searched in your blog and haven’t found a clear answer when regarding testosterone and hairline balding and not DHT.

Propecia has the same impact on the frontal hair and the crown hair, but it appears that it is less effective on the frontal hair, which is often caught later after the hair loss is detectable. The crown seems to have a slower loss rate and that is probably why Propecia (finasteride) works so well in the crown. Finasteride is not bad for frontal hair and I have even seen people reverse frontal hair loss with it in the very young man, although it is rarer in the front than the crown.