First time in Seoul! Any recommendations for skincare clinics or treatments that are a must-try?

Hi everyone! I'm Intan, and I'm super excited because next month I'm going to Seoul for the first time! 🇰🇷 I've heard so much about the skincare and aesthetic treatments there, but honestly, I'm still a bit lost on where to start.

So, I wanted to ask you all—what do you think are must-try experiences for a first-time visitor to Seoul? I'm particularly curious about the facial treatments that are said to be amazing there, but I also want to explore local skincare products. I have combination and somewhat sensitive skin, so my preference is for skincare that's gentle yet effective.

Can anyone suggest good areas or districts for aesthetic clinics? I've heard of a few famous areas, but I'm not exactly sure which ones are reliable. Also, roughly how long in advance do you need to book appointments, or can you usually walk in? Hahaha, sorry for all the questions!

Thanks in advance! I'll update you all later about my experience 😊