How many hair loss treatment sessions do you usually receive? I'm curious about the recommended number of sessions.

I am wondering how many hair loss treatments are recommended.

I am extremely worried not only about the condition of my facial skin but also because, perhaps due to extreme stress recently, my hair on my scalp is thinning and I seem to be showing early symptoms of hair loss. Since hair loss does not improve overnight, I have decided to systematically undergo medical hair loss treatments at a clinic, such as mesotherapy or scalp injections. However, I am curious about the standard recommended number of sessions for these treatments. It would be very helpful if you could provide a detailed explanation of the overall treatment process and recommended number of sessions, including how many intensive treatments at one- or two-week intervals are required to see initial results and how maintenance treatments are scheduled thereafter.