Dermal fillers are an injectable substance made from natural and synthetic material and have been developed for injection into the skin to restore its youthful appearance. Over 30 million people across the world have been successfully treated. The main type of dermal fillers in the market, are a soft gel consisting of stabilized, non-animal hyaluronic acid. The gel is tissue-friendly and closely resembles the hyaluronic acid that exists naturally in the body. It is long lasting but not permanent.