Where is the most convenient place to stay for a beauty trip in Seoul?

Hi, it's Hana! I'm planning a trip to Seoul this summer to get some beauty treatments, but honestly, I'm a bit lost on which area would be best to stay in.

I know there are tons of cosmetic clinics around Gangnam and Apgujeong, but I'd love to hear from people who have actually been there... Is staying in those areas convenient? Or would it be better to commute from a different area? I'd really appreciate any real-life experiences about what to do before and after treatments, getting around, etc.

It's my first time traveling alone, so I'm looking for a place that's as safe as possible but also convenient for getting treatments. Has anyone else traveled from abroad for beauty purposes? If you have any recommended areas, please let me know!