Finasteride may work wonders but it's a suicide inhibitor. Once it binds to the 5 alpha reductase enzyme, it's irreversible. Your DHT levels may never recover. Unfortunately DHT is also involved in sexual function. For some it will be a choice between having hair and having a libido. Hair loss does not imply high test or even high DHT -- if high DHT sufficed for hair loss, all anabolic steroid abusers would be bald. Hairloss = genetic predisposition + DHT. If you are very predisposed, a hair implant or transplant would be less drastic than shutting down your DHT forever.