How many sessions of skin booster do I need to see results?

Hello. My skin feels drier and less elastic than before, so I am thinking of trying a skin booster. Initially, I planned to try it just once to see the effects, but after doing some research, I found that it is common to receive treatments multiple times at regular intervals.

I am curious if there is a significant difference between receiving a skin booster treatment once and receiving it consistently for about 2 to 3 sessions. I would also like to know at what session you actually felt your skin improved the most. Since the interval between treatments seems to vary slightly from clinic to clinic, I am curious about how long you typically waited between sessions.

I would also like to know if the effects are maintained to some extent even if I stop after a certain number of sessions, or if I need to continue periodic management. Since the cost could be a long-term burden if it is not a one-time treatment, I am curious about the satisfaction level of those who have actually received it consistently.

If you have used the skin booster multiple times, I would appreciate it if you could let me know which aspect—skin texture, hydration, or elasticity—you felt the biggest change in compared to the first time.