I'm looking for self-care products to buy after my trip to Korea. Does anyone have any recommendations?

Hi! I'm going to Korea for my first beauty treatment and I'm wondering what I should buy for post-arrival skincare. I know I need to take extra care of my skin in the first few days. I'm thinking of packing quite a few things, like cooling masks and moisturizing gels, but I'm not sure which ones to look for.

Has anyone been to Korea before and bought any self-care products? Were they items you bought in Korea or packed from Thailand? Could you tell me what really helped and what's easy to pack? I want to be well-prepared for a smooth recovery.

Thank you for your advice! 🙏