Hello. I’m Dr. Lee Hong-seon, a board-certified dermatologist with 17 years of experience and the director of Mind Dermatology, where we focus on improving the essence of your skin with care. Do you often hear people ask, “Why do you look so tired lately?” or are you considering a treatment because of the dark circles under your eyes? In fact, the area that makes a person look the most tired and aged is indeed the “under-eye” region. However, you shouldn’t rush into trendy procedures that simply fill in the hollows. Let me explain why under-eye fillers or skin boosters aren’t the best first choice. Hongik University Station Dermatology Clinic: Under-Eye Sagging 1. 'Under-Eye Fat': Identifying the Cause Comes Before Filling The fundamental cause of deep-looking tear troughs is mostly not the hollows themselves....... 