My facial contours had been sagging so much lately that I looked around various dermatology clinics in Seongsu-dong, and I completely solved the problem with the Coolphase treatment. I'm the type of person who really can't stand pain like with Thermage or Ultherapy, but I tried Coolphase right away after getting a recommendation from Bibonyoung Clinic in Seongsu-dong. I was surprised that anesthesia wasn't needed because of the cooling, and there was almost no pain haha. It felt cool throughout the procedure, so it actually felt like a healing experience. There was no swelling or bruising afterward, so it resolved all my concerns about finding a dermatology clinic in Seongsu-dong in one fell swoop! I could see the lines being refined immediately, and my skin texture became smoother, so I feel so good every time I look in the mirror. I highly recommend Coolphase to anyone looking for a dermatology clinic in Seongsu-dong!! It's also reasonably priced, making it perfect to get without any pressure.