I'm curious about hair loss treatments.

Since entering my 50s, I feel like my hair has thinned noticeably, so I have been looking into hair loss treatments lately. My crown, in particular, looks much thinner than before, and it bothers me every time I take a photo. At first, I thought it was just a natural part of aging, but I've noticed a definite difference in the people around me who have started taking care of their hair. So, I am considering getting a hair loss treatment myself. However, the advertisements portray the results so positively that I am curious about actual experiences. I want to know if there is a change after just one or two sessions, or if consistent treatments are required. I am also curious about whether the pain is severe and how long the procedure takes. Above all, I want my hair to look naturally thicker, but I am hesitant about it looking too obvious. Since the methods and costs vary significantly from clinic to clinic, I am having trouble making a decision right away. If anyone has received hair loss treatments, please share your reviews regarding satisfaction, duration of results, and reasons to recommend them. Hearing the experiences of those who have had similar concerns would be very helpful in making my decision.