Where's the best place to stay for a beauty trip in Seoul?

Hello, I'm Chika. I'm planning a beauty trip to Seoul next month and wanted to ask for everyone's recommendations.

I've heard that Gangnam and the surrounding areas are famous for beauty treatments, but what's the reality like? It's my first time, so I have no idea which areas are easy to walk around or have lots of shops. Also, are the areas with many dermatology clinics and aesthetic clinics really concentrated in Gangnam?

I plan to stay for a few days, so I'd be grateful if someone could tell me which hotel areas are convenient, which station areas make it easy to get around, and any specific tips for foreigners. I'd also love to hear from people who have actually been! I know it varies depending on budget and treatment, so I'd appreciate any insights.

If anyone is knowledgeable about the local scene, please share! 🙏