How can foreigners like us find trustworthy clinics in Korea?

Hi, my name is Fern. Has anyone here ever gone to Korea for beauty treatments? I'm planning a trip but I'm really confused about which clinic to choose. There are so many different online reviews, and I don't know what to look for when inquiring.

Do you have any tips for finding a trustworthy clinic? And how important is an interpreter or consultation in English? I speak a little Korean, but I'm not confident enough to ask for medical advice. Should I go with an interpreter or choose a clinic with staff who are proficient in other languages?

Also, once I get there, what should I look for to ensure a professional and clean clinic for peace of mind? Any advice would be appreciated! Thank you in advance!