Please tell me the price of hair loss treatment!

I would like to inquire about hair loss treatment. I tried to manage with shampoos and supplements, but I can visibly see my hair thinning, so I am now seriously considering professional hair loss treatment.

I felt like I needed to start proper care before it was too late.

The first thing you might be curious about is the actual effects you can expect from receiving a hair loss treatment.
I heard there are methods like follicular injections, exosomes, or hair transplants,
I'm curious if you can definitely feel new baby hairs growing or your hair getting thicker when you actually receive this treatment.
I'm curious how many sessions are usually needed to feel the effects, although individual differences may exist.

I'd also like to ask about the price, which is what I'm most curious about.
I understand that prices vary from hospital to hospital, but I am curious about the typical cost of a single hair loss treatment visit or a multi-month package.
I think I should set a budget in advance so that I don't give up halfway.

I would also like to ask about the duration of the condition maintained after the hair loss treatment.
Do the improvements achieved through hair loss treatments tend to last for a long time even after you stop the treatment?
Alternatively, I need advice from those with experience on whether the results can be maintained by taking medication and undergoing periodic hair loss treatments for the rest of my life.

I am also curious about pain during the procedure and whether it is possible to return to daily life immediately.
Since I work, it would be troublesome if I had scars or swelling.
If there are others like me who received hair loss treatments in the early stages and were satisfied, please give me specific recommendations on which treatment you were most satisfied with.