For pattern hair loss, largely yes. These treatments hold a process back; they do not switch it off. Stop, and the follicle returns to the path it was on, usually within months.
Transcript
For pattern hair loss, largely yes. And anyone who tells you otherwise isn't being straight with you. These treatments hold a process back. They don't switch it off. Stop and the follicle returns to the path it was on, usually within months. That isn't a reason not to start. It is a reason to know what you're starting before you start it.
That is not a reason to avoid starting — it is a reason to understand what you are starting before you start it, and to ask your doctor what stopping would look like. It is one of the most useful questions you can put to them at a first consultation.