Visiting K-beauty, but what vitamins should I prepare and how should I take care of myself? 🤔

Hello! I'm planning a trip to Korea next month for some self-care and want to prepare some things to use at home afterward. I'm currently debating what would be best for post-treatment skin care, like a cooling mask, silicone sheet, or smoothing gel, which I've heard work well.

Has anyone been before and prepared anything? Is a package from a local skincare clinic better, or should I bring my own products from home? I'm unsure if these items are suitable for Korea's climate during that time 😅 And if I decide to go to EK Center, will it be easy to find?

Any tips would be greatly appreciated! Thank you in advance!