Resterlyn and Juvederm are both gels that are injected under the skin to fill areas that need added volume. These gels are made of Hyaluronic Acid, which make them a more natural product as our bodies also create this type of acid. As you age you can start to lose volume around your nose and mouth. Both treatments help to fill that void by smoothing out your facial wrinkles and folds and thus giving you a younger appearance.
There are a few differences between the two. Resterlyn was FDA approved in 2003 and is a slightly thicker gel. Resterlyn may only last up to 6 months, depending on area of injection. The clinician performing the injections would be likely to make recommendations on which product is best between Resterlyn and Juvederm for the area you wish to treat.