Looking for advice! Which areas in Seoul are most recommended for a beauty trip?

Hello everyone! I'm Bella from Indonesia, and I'm planning a trip to Seoul specifically to explore beauty treatments and skincare. I'm really curious about areas that are said to be great for aesthetics, like Gangnam and Apgujeong, which I've heard a lot about from friends.

I've actually never been there before, so I'm still unsure which is more worth visiting. Are there really many options in Gangnam and Apgujeong? And what about the location of the clinics and accommodations? Are they close or far away? I want to find something convenient to avoid too much hassle.

I'm also curious, which area is the most recommended to stay in? I'm looking for a safe place, close to the treatment center, and budget-friendly if possible. Has anyone ever stayed in one area and then moved to another? Is it worth it?

Thank you in advance! I'd really appreciate it if anyone could share their experiences 🙏