Restylane is natural cosmetic dermal filler that is made of non-animal-based hyaluronic acid. The fact that it is non animal based decreases the risk of animal based disease transmission or allergic reaction so no pre-testing required. Restylane has been approved by the FDA for use in moderate to severe facial wrinkles and folds such as nasolabial folds. There is usually no recovery time required after a Restylane injection and the effect lasts approximately six months. 

Last updated on January 24, 2010 by Donald Sudy, MD