Dermal fillers are injectable substances primarily made from hyaluronic acid, a naturally occurring substance in the body that diminishes with age. These fillers work by adding volume to areas of the face that have lost fullness, helping to eliminate wrinkles and creases. Dermal fillers can be used to enhance the lips, restore volume in the cheeks, and smooth lines around the nose and mouth. The results are immediate, and most fillers last from six months to two years, depending on the product used and the area treated. Overall, dermal fillers are an effective and safe way to achieve a youthful, revitalized appearance.