Restylane ® is a clear gel formulation of hyaluronic acid that is specifically formulated to act like your body’s own naturally produced hyaluronic acid, helping to visibly correct moderate to severe facial wrinkles and folds, including the lines that run from your nose toward the corners of your mouth and the lines that run from the corners of your mouth toward the chin.  Restylane ® is also FDA‑approved for lip enhancement in patients over the age of 21 and is uniquely formulated to give your lips fullness and definition.