What do you guys bring with you to care for your skin after getting beauty treatments done in Korea?

Hi, I'm Hang, and this is my first time flying to Korea to get some treatments done. I'm packing my suitcase right now, and I want to bring along some skincare products for aftercare following my procedures. But I'm not sure which ones to choose. I'm wondering whether I should buy cooling face masks, silicone scar sheets, or soothing gels before I leave, or if I should just buy them there instead?

I've heard that Korean shops have tons of options, but I'm worried I won't be able to find the right products if I don't know their Korean names. What do you guys bring with you when you go for beauty treatments? Or do you buy everything there? I'd also like to know which aftercare products are actually worth it based on your personal experiences.

Thanks so much in advance! I'm really hoping to hear from people who've done this before 💙