I started loosing hair about 8 years ago. Slowly, but then the speed increased and I became quite woried. It was a pretty traumatic experience, especially after I shaved my head and discovered I look like shit
About three years I started taking propecia, after I saw it presented in a show on Discovery channel as one of the few working remedies. I can't say the hair has grown back, or not significantly, but the hairloss slowed down and eventually pretty much stoped. So I'm pretty satisfied with it. Here is some info, it may be helpful.
Quote:
Male pattern baldness is medically called androgenetic alopecia. It accounts for 95% of all hair loss. In women, it appears as a diffuse thinning over most of the scalp. In men, it starts with a receding hairline that gradually develops over the top of the head. This hair loss is called androgenetic alopecia because the male hormones (androgens) and hereditary factors (genetic) that determine the loss of hair.
Specifically, the enzyme 5 alpha reductase converts the male hormone testosterone into a male hormone called Dihydrotestosterone (DHT). The DHT is believed to cause hair loss in those who are genetically disposed. DHT shrinks the hair follicle until it no longer grows visible hair.
Propecia works by blocking the enzyme 5 alpha reductase that lowers the levels of DHT in the body. This normalizes hair growth and reverses hair loss. The advantage of Propecia is that it selectively targets the appropriate hormone without causing undesirable changes in other hormones.
According to Merck Pharmaceuticals, Propecia stops the progression of hair loss in the majority of patients (83%), and results in hair regrowth in over 65%.
You may use it for 3 months or more before you notice an increase in hair growth and/or prevention of hair loss. If you haven't seen results within 12 months, you probably won't.
98% of men taking Propecia had no side effects. Clinical tests show PROPECIA is very well tolerated. A small number of men (1.8%) experience some sexual side effects. 1.3% reported erectile dysfunction.
No side effects for me though

And I definitely don't look like mister Picard here.