The tear trough is the area between your cheek and lower eyelid. As we age, we lose volume in this area sometimes causing under-eye dark circles to appear. An effective tear trough treatment is to inject filler into this area – restoring the lost volume and reducing the appearance of dark circles. Tear trough fillers are an effective way of treating dark circles under the eyes and under-eye hollows due to volume loss. It also improves skin quality by boosting collagen production and hydrating skin from the inside.