The body will eventually build a resistance to almost every drug right? Why is it that the same won’t happen to Propecia?
Finasteride blocks DHT from acting upon the receptors to about the 80% level. Eventually, the hair loss will continue to progress, but from a better, hairier level, and even with the progression of the hair loss, some impact of finasteride will persist because many of the DHT receptors still remain blocked. Nothing in this world is forever, except death. Drugs that block the DHT receptors make your hair grow, but they are not the final answer today for hair loss.