Injectable skin fillers are used for facial rejuvenation and wrinkle treatment without surgery. Injectable skin and wrinkle fillers are used to increase tissue volume such as for lip agumentation, reduce wrinkles, and improve skin's overall contour. It takes a few minutes to perform the treatment. The results from hyaluronic acid based products, such a Juvederm® and Restylane®, are seen immediately and can last up to 6 to 8 months. It takes multiple treatments and few months before the final results are seen with Sculptra® (Poly-L-Lactic Acid) but the results can last up to two years