How much does hair loss treatment cost?

As I get older, I feel my hair thinning, so I am looking into hair loss treatments. I didn't used to worry about it much, but lately, the top of my head looks sparse, so I've become quite concerned. I am considering a consultation at a clinic, but above all, I am curious about the cost of hair loss treatments.

When I search online, I find it even more confusing because there seems to be a wide variety of hair loss treatments and significant differences in cost. I would like to know what types of hair loss treatments people in their 50s and 60s usually receive, and what the average cost should be.

I'm curious about realistic information because the cost of hair loss treatment seems to vary depending on whether it's a one-time session or requires multiple treatments. If anyone has actual experience, please feel free to share the cost range, effectiveness, and whether you would recommend it; it would be a great help!