I'm going to Seoul next month! Can anyone recommend must-try skincare spots and clinic areas?

Hello everyone! I'm Wei, and I'm finally going on a business trip to Seoul, which will also be a vacation. To be honest, I mainly want to take this opportunity to fully experience Korea's skincare and medical aesthetics culture. I've been using skincare products for so many years in China, and I've always heard that skin management programs in Seoul are particularly popular, but I've never tried them myself.

I'm a bit interested in both skin management and basic care, especially professional deep cleansing or treatment sessions. However, I have to be honest, I have no idea about the specific procedures and don't know how much time or budget to allocate. Can anyone share their experiences? For example, which areas did you visit, and what was the general experience like?

Also, I'd like to browse local skincare products. I heard there are many options in Myeongdong or Gangnam? But I'm actually not too sure which ones are really worth buying. Are there any friends who can share their Seoul skincare journey? Please!