Juvederm is a family of injectable hyaluronic acid dermal fillers used to provide 9 months to one year of correction for moderate to severe facial wrinkles and folds, such as nasolabial folds (lines from the nose to the corners of the mouth). Hyaluronic acid is a naturally occurring sugar found in the body. Teosyal fillers can be injected into all areas of the face (under eyes, nasolabial folds, jawline, lips, etc.) and in the neck. The hyaluronic acid is slowly and naturally absorbed into the skin, as the acid already exists naturally in your body.