Can I see results with just one bottle of Sculptra? How many bottles do you usually get?

As I get older, I feel like I'm losing weight in my face little by little, so I'm looking into Sculptra.

At first, I only wanted to try it once, but after looking it up, I found that there are cases where the procedure is done with one bottle, and cases where multiple bottles are used for the entire face.

It seems the recommended dosage varies from hospital to hospital, so I'm not sure what the general amount is. I also don't think getting a large dose is necessarily better.

For those of you who have received Sculptra, how many vials did you use for the first treatment? I am curious if you saw satisfactory changes with just one bottle, or if you received additional treatments.

Are there any specific points I should check besides dosage and cost when consulting at the hospital?