It can. Don't expect major hair growth, but a small increase where hair there's male pattern hair loss. Baby hairs. It can also help slow, or stop male pattern baldness. If you plan on starting HRT, I would suggest using estradiol pellets. HRT will stop, in most cases, hair loss, and in some cases, help regrow some hair not damaged by T. Patients that use this medication will find that if they do experience hair regrowth, they can expect better results in after five years. Stopping the medication will leave, unfortunately, the new hairs on the pillow in 8-9 months. This medication under the name Proscar is used to help reduce the size of an enlarged prostate gland.
The best bet is to first start with HRT, then see where you're at in five, or six months. If you don't plan on HRT, then by all means, use the finasteride.
Keep in mind Finasteride works differently on each patient. Good luck, and remember all medication is poison, however, some happen to have a good side effects, or two, or three.
