Hello. I am Dr. Lee Hong-seon, a dermatologist at Hapjeong Dermatology, dedicated to improving the essence of your skin with care. In my practice, I often hear patients in their 40s say things like, “My facial contours don’t look the same as they used to,” or “My skin feels less firm overall.” These changes don’t happen overnight; they are the result of a gradual decline in collagen over time that has now become visible. Especially after age 40, three factors—decreased elasticity, sagging, and an increase in fine lines caused by volume loss—appear together, causing one’s appearance to change dramatically. So today, for those in their 40s considering treatments, I’ll explain—as a specialist at Hapjeong Dermatology—how to address each of these elements: elasticity, sagging, fine lines, and volume loss....... 