Minoxidil: Increases blood flow by dilating blood vessels. More blood flow means more resources for hair in the region that the minoxidil is acting in. More resources = hair grows thicker. CANNOT grow hair for follicles that are dead. Effects go away when you stop taking it.

Finestaride (probably the one you’re talking about): blocks DHT that causes male pattern baldness. Prevents hair loss caused by DHT (for most people). Effects last only while you take it.

Hence, people generally combine these things. Finestaride to stop mpb/lessen its pace, while minoxidil to make fine hairs at the hairline grow thicker.

Ok, let’s bring back the dinos