As we age, we all lose approximately 1% of hyaluronic acid from our bodies. Hyaluronic acid is the natural filler substance in your body. The face starts to lack volume and appears aged with deeper nasolabial folds (also called parentheses lines), unaesthetic marionette lines, a deeper mentalist (chin) fold, thinning of the lips, and turning down the corners of the lips. Hyaluronic acid fillers such as Restylane and Juvederm are then injected extraorally right underneath these folds to replace the volume lost which creates a younger look in the face. These injectable dermal fillers will volumize creases and folds in the face in areas that have lost fat and collagen as we age, creating a more beautiful, younger-looking frame around the teeth. The effect of dermal fillers typically last anywhere from 6 to 12 months at which point the procedure needs to be repeated.