When searching for a cosmetic treatment clinic in South Korea, how do foreigners find trustworthy ones?

Hi, this is Ayaka. I'm thinking about getting cosmetic treatment in Korea, and I have some questions about choosing a clinic. Many of my friends from Japan have had treatments in Korea, but I'm a first-timer and feeling anxious...

How do foreigners find trustworthy clinics? I'm not sure if the places I see on social media are actually reliable. Also, for the initial consultation and treatment explanation, is it better to choose a clinic with an interpreter? Or should I look for a clinic with staff who speak English or Japanese?

For those who have actually received treatment in Korea, how did you choose a clinic? I'd love to hear about any points you prioritized or things you checked beforehand. Real-life experiences, especially regarding language barriers, would be incredibly helpful.