Finasteride, long term does it lose benefits?

Does finasteride eventually stop working over time to either regrow or maintain hair for everyone that takes it as their genes for balding take over?

Finasteride maintains benefits; however, your hair’s ability to stop its eventual pattern may not be stopped by finasteride, just slowed down. I have seen men on finasteride for 15-20 yrs stop it, and they lost significant amounts of hair as a result suggesting even that far out (20 years) doesn’t stop finasteride’s effectiveness