4ever Hospital Cheongdam Xu Yinghan

Representative Director of 4ever Dermatology Cheongdam Branch, South Korea. Serves as a Standing Director of the Korean Association for Facial Contouring (KAFC). Officially designated International Key Opinion Leader (KOL) / Instructor for renowned anti-aging brands including Ellansé, Silhouette Soft, Teoxane, Density, and Potenza. Ranks among the top in Cheongdam-dong for per capita Ellansé usage and injection proficiency, specializing in precise, vessel-sparing natural bone structure augmentation.