As a foreigner, how can I distinguish between genuine and fake reviews of Korean cosmetic surgery?

Hi everyone, I'm Hui. I'm thinking of doing a small project in Korea recently, but I'm struggling because I can't understand many of the reviews in Korean, and some translation software makes them sound very awkward. I'd like to ask experienced women how to tell if a review is genuine or fake? Are there any obvious warning signs to watch out for?

For example, I've seen some reviews that are incredibly perfect, with amazing photos. Does that mean they're not very trustworthy? Also, is it normal for a clinic to have all 5-star reviews? I'm a little worried about being scammed, especially since I'm in a foreign country and there will be communication barriers.

Furthermore, besides looking at reviews, what other ways are there to determine if a clinic is reliable? For example, can I check their business license and qualifications? Or does anyone recommend having a friend who understands Korean accompany me during consultations? I would really appreciate any suggestions; I'm a complete novice in this area as a foreigner!