Seeking advice: How can foreigners find a trustworthy clinic in Korea?

Hi everyone, my name is Nan. I'd like to ask friends who have had beauty treatments in Korea or are planning to go: How do you find reliable clinics? I'm interested in going to Korea but I'm worried about the language barrier and finding a truly safe place.

I'd like to know what important things I need to check. Are there any tips for translation? Can you recommend any clinics or websites that can help? And has anyone done online consultations before going? Information from other international friends or real reviews would be greatly appreciated. Thank you in advance!