Has anyone done executive health screening or aesthetic treatments during a trip?

I’m going to Korea for about 3 weeks in October and starting to plan everything.

Thinking of doing an executive health screening while I’m there, plus maybe some derm/aesthetic stuff. I know there are Korea beauty subreddits, but a lot of the recommendations seem to be the same handful of clinics and I’m not always sure what’s genuine vs. marketing.

Has anyone here actually done it?
Any hospitals or clinics you’d recommend?
Did you book everything yourself or use a facilitator?
Looking back, was it worth taking a day or two out of your trip?

Would love to hear any experiences (good or bad). Thanks!