If you're worried about male pattern hair lose, but don't care about having a libido: Prescription Finnesteride. It a testosterone blocker specifically for the one that causes male pattern baldness. I was hitting stage two, and a long with the HRT I'm taking, I am seeing a lot of clawback on spots I thought would be bald forever.
I only pay like $15 for three months through GoodRX.
Ah, yes, plenty of time to reverse the decision before a single penny is spent!