Will Finasteride save your hair and hairline for life?

Finasteride works well to slow or even stop hair loss. Some people have an excellent response to this medications that lasts their entire life. In others it works well at first but then loses its effect as the years go on. Finally, there are some where finasteride does very little to slow or stop their hair loss. The amount of response one gets to finasteride depends on how much of the hair loss is hormonally driven by DHT (a derivative of testosterone). If someone has an excellent response to finasteride it is safe to say that hormones (DHT specifically) was the primary cause of the hair loss. If there is no response to finasteride then you should look elsewhere as to the cause. 

It will slow hair loss, but won't stop it completely. You would need to continue using Finasteride to maintain results.  I suggest seeing a hair loss expert now to evaluate and go over your condition and provide you information about your best treatment options. There are great non-invasive options like prp/progesterone which work well with Finasteride. See an expert. Best, Dr. Emer

Finasteride daily 1 mg is a recommended treatmant for slow and/or stop the hairloss.But there is not any guarantee for stop hairloss lifelong.