Are there separate stem cell clinics that use fat cells?

I've noticed that stem cell injections are quite popular these days as a treatment for parents. How effective are they?

Perhaps due to severe internal dryness, they tend to have fine wrinkles around their eyes and mouth.

I've also heard that their overall immunity is quite low, so they catch colds frequently.

I've seen Susu Hospital in Sinsa and Lahae mentioned frequently as places that use fat cells, so I'm currently looking into them.

Please let me know if there are any other famous places.

I've heard that fat cells are more effective than blood cells, so I plan to visit places that focus on that.