Can I consider Density as a one-time treatment?

Lately, I feel like my facial elasticity has decreased compared to before, so I am looking into Density.

Since this is my first time getting a lifting procedure, I'm wondering how much of a change can be seen after just one session.
Or I was wondering if I need to receive it multiple times at intervals.

Rather than paying for multiple episodes from the start
I want to try it out first and see what changes occur in my skin.

However, I've also heard that the recommended frequency varies depending on the hospital.
I also wonder if there isn't a fixed number of times.

For those who have consistently received Density, did you make a plan from the beginning?
Or I am curious if you decided on the next procedure after trying it once.