I've been losing a lot of hair lately. What are the effectiveness and prices of hair loss treatments?

I feel like I'm losing more hair than usual lately, so I started looking into hair loss treatments. I'm curious about the actual effectiveness of these procedures. I've heard that treatments help improve the scalp environment and alleviate hair thinning, but I'm not sure if they simply reduce the amount of hair falling out or if they also affect new hair growth. I'm also wondering when I can expect to see noticeable changes once I start the treatment.

I have also heard that hair loss treatments need to be received consistently, so the frequency seems important. I would like to know what the general intervals are. Since the cost of the treatment can be a burden, I am curious about the cost per session or the total budget required if I proceed with a package. I would also like to know if the satisfaction rate for hair loss treatments is generally high in the long term.