Question! What's a good area in Seoul for beauty treatments with convenient accommodation?

Hello! My name is Ja and I'm planning my first beauty trip to Seoul 😊 I've heard that the Gangnam and Apgujeong areas have a lot of beauty clinics, is that right? I'm curious if other international friends who have been there had good experiences, and what area is best to stay in while getting beauty treatments?

I'm thinking of going for about 5-7 days and would like to stay somewhere close to good clinics, but I also want to have things to do when I'm not at appointments 😅 Does anyone have any suggestions or have been before? Are there any countries that clinics in this area can speak with?

This is my first time going on my own, so I want to gather as much information as possible before paying 😆 Can anyone recommend anything? Thank you in advance!