What do people bring back for aftercare following beauty treatments in Korea?

Hey ladies, I'm going to Korea for some minor beauty treatments and I'm packing. I want to know what everyone usually brings for post-treatment care? I've already planned to buy cooling masks or water-based products there, but I also want to know if I should bring some from Vietnam as well.

Specifically, I'm looking into things like massage masks, gentle gels or serums, and have any of you used silicone pads or specialized products for skin recovery? I don't know if the quality of products in Korea is better, but I feel like I should prepare a few extra things.

Has anyone had a similar trip? Could you share your experiences? I want to make sure I'm taking proper care of my skin when I get back. Thanks! 💕