For those trying a skin booster combination for the first time, how did you get started?

I'm looking into skin boosters because I want to improve my inner dryness and skin texture.

There are so many types like Rejuran, Rituo, and Virtue that I don't know where to start.

I heard that receiving it as a combination is more effective, so I'm also wondering if it's okay to get the combination from the start.

What combination did you start with when you first received it?