Fine lines and wrinkles are visible signs of aging caused by the natural loss of collagen and elastin in the skin. Fine lines typically appear as shallow creases in the early stages, while wrinkles are deeper and more pronounced folds in the skin. They are most common around the eyes, forehead, and mouth, where repetitive facial movements and sun exposure accelerate their development. While they are a natural part of aging, advancements in skincare and aesthetics make it possible to minimize their appearance and restore a smoother, more youthful look.