What aftercare products did you bring with you on your beauty trip?

Hi everyone, I'm Riko! I'm planning a beauty trip to Korea next month, and I'm a bit unsure about what post-treatment care products to bring. I do skincare regularly in Japan, but I'm wondering if I really need special preparations after getting treatments done in Korea 😅

What I'm most curious about is whether cooling masks and silicone scar sheets actually work, and if I should bring along calming gels and things like that. I know it probably depends on the type of treatment, but what did everyone bring with them?

I'm sure I can buy things locally, but I'm thinking it might be safer to bring Japanese products I'm already familiar with. If anyone has experience with this, I'd love to hear your recommendations and stories about what you wish you'd brought! Any advice would be really appreciated!