In recent years, Seongsu-dong has become a new must-visit destination for medical beauty treatments in Seoul. Different from the mass-produced services offered in Gangnam, these clinics are small but sophisticated, and the directors personally attend to each patient. I recently visited five Dermatology clinics in person: Melting, Newlline, Serene, IRIS, and Bellis, and consulted with their staff about their services. For those with acne-prone skin, Dr. Kim Se-lim at Serene is a reliable choice; if you’re looking for HIFU treatment, Newlline’s affordable US-style option at ₩990,000 is very worthwhile. The IRIS station located near Itaewon is the most convenient, while Bellis offers the most luxurious environment. Melting is ideal for those who want a comprehensive anti-aging treatment plan. This article summarizes the features, prices, addresses, and transportation information of these five clinics, so you can make an informed choice without running into any problems.