How did you all decide whether to get it done in Korea or Japan?

Hello, this is Hana. I've been hesitating about something for a while, and I've decided to take the plunge and ask for advice.

I'm thinking about skin treatments, and I'm really torn between getting them done in Japan or South Korea. Korean clinics seem more advanced, and the reviews I've seen are always so interesting. But if I do it in Japan, I don't have to worry about the language barrier, and I can easily consult someone if any issues arise, right? Also, when I consider the cost and aftercare, I can't decide which option is better...

Has anyone actually had a treatment in South Korea, or considered both Japan and South Korea? I'd love to hear real stories about what made you decide, or if you have any regrets. I think there are specific concerns that come with being Japanese. It would be really helpful if you could tell me what criteria you used to make your choice.