Propecia is an alternative name for finasteride, a popular hair loss treatment for men. Propecia has been known to effectively stop and prevent further hair loss at the same time help you regrow back the hair you have lost due to alopecia or male pattern baldness. What propecia does is to inhibit certain enzymes that convert testosterone, a common male hormone, into dihydrotestosterone or DHT, the root cause of male hair loss problems as well as prostate enlargement in men. DHT, according to experts, is a harmful substance for the hair follicles. As the DHT level rises, the follicles begin to shrink until they can only produce smaller and thinner hair that are almost not visible to the eyes anymore, which makes you look bald and ugly. Propecia has been known as an effective treatment that can resolve this hair loss problem down to its root cause. You can buy propecia at any drugstores around the world, but you might get overwhelmed with the pricing of most drugstores. This is why today, with the advent of the technology and the internet, you can already buy Propecia online which is generally cheaper and more convenient.