| So when there is an increase in DHT secretion a human head begins loosing hair and once the DHT level in the scalp decreases, the cycle of hair loss stops and in many cases new growth of hair resumes. This is what Propecia does, decreasing the amount of DHT from our scalp. The main ingredient in Propecia is Finasteride. It directly inhibits the formation of DHT and over a period of considerable amount of time, it reduces the level of DHT sufficiently, minimizing its effects on our hair follicles. As with any drug, finasteride can also cause side effects to a minority of users. The FDA trials reported a 2% incidence of varying side effects but these tends to cease as the body gets adjusted to the drug after a period of time. Some of its side affects or symptoms are skin rash, or swelling of lips. Propecia is available only on prescription. So the best thing to do is to consult your dermatologist before using it and do not share this drug with others. |