Which area in Seoul is best for aesthetic treatments and accommodation?

Hello! I'm Yasmin from the UAE and I'm planning a trip to Seoul next month for skincare and aesthetic treatments. I've heard a lot about areas like Gangnam and Apgujeong, but honestly, I don't know which one is better for what I'm looking for?

Has anyone here stayed in either of these areas? Are there hotels and hostels close to clinics and aesthetic centers? And are accommodation prices very expensive in Gangnam compared to other nearby areas?

I also want to know: how many days do you usually spend in Seoul for aesthetic treatments? Do you prefer to focus on one area or move around? Any advice from your experiences would be greatly appreciated! 💕