Planning a beauty trip to Seoul, what areas are good? Any recommendations!

Hello everyone! I'm Sinta, from Indonesia. I'm planning a trip to Seoul next month and want to focus on beauty treatments while sightseeing. But I'm still unsure which area would be best to stay in.

I've heard Gangnam and Apgujeong are super famous for beauty clinics, but I've also heard they can be crowded and expensive. Has anyone stayed in those areas? Is it worth it? I'm looking for convenience but also don't want to stress too much about accommodation prices.

Plus, I'd love to hear from those of you who have been there before—which areas are the best for exploring while getting treatments? Are there other chill areas that still have good beauty spot options? I'm really open to suggestions, honestly. My only considerations are easy access and a nice atmosphere.

Thanks in advance if anyone wants to share their experiences! 😊