What skincare essentials did everyone bring back after their beauty trip?

Hi everyone! I'm planning a small procedure in Korea soon and want to get a head start on preparing some post-operative care items. I've heard it's more convenient to bring products for use before and after the flight, and I won't have to worry about availability or price issues locally.

Right now, I'm debating whether to bring some soothing masks, silicone scar sheets, and repair gels from China. Have any of you had procedures done before? Could you share what care products you prepared? I'm especially curious about which cooling masks and repair masks are more comfortable to use. I'm worried it'll be a hassle if I can't find suitable ones during my recovery there.

Also, I wanted to ask if these basic skincare products are readily available in Korean convenience stores or drugstores, or if it's safer to just bring them from home? Looking forward to hearing everyone's experiences!