Microdosing finasteride

Thank you for your answer. I’ve heard it’s 80% as effective as the regular dose, would you say that estimate is correct? I’ve been taking that dose for a year because I was concerned about sides and my doctor prescribed it that way, however I feel like my hair is not improving. I also take minoxidil once a day and I think the loss has stopped or almost, but nothing more than that.  I just turned 25

What is the dose you are discussing? Look at this curve: https://baldingblog.com/finasteride-competes-with-dht-at-the-receptor-graphic/ You can see that half the dose is almost as effective as the full dose and 1/4 of the dose is about 50% as effective as the full dose