What should I bring to Thailand for post-beauty treatment care? Any recommendations?

Hi everyone! I'm getting ready for a short trip to Korea and want to focus on light beauty treatments while I'm there. Since it's a short stay, I want to pack self-care essentials for peace of mind, but I'm not sure what to bring.

Has anyone been to Korea before and can offer recommendations on what kind of skincare products to buy? For example, cooling masks for recovery or things to soothe irritated skin. I'm thinking of packing cooling masks or soothing gels. I'd also like to know what aftercare products are truly helpful in the initial stages of recovery.

I would be very grateful if anyone could share their experience on what to pack, what's essential, and what items might not be necessary. Thank you in advance!