Lip fillers are a type of dermal filler that are injected into the lips to add volume. They consist of synthetic hyaluronic acid, which is a natural substance found in the body that helps increase volume in the lips. Lip fillers are a temporary solution that can last for about six months. They are often used to increase the size of the lips, restore a previous lip size, or enhance the shape of the lips. Lip fillers can also help delay the need for a more invasive surgical lip augmentation, like lip implants or a lip lift. The procedure takes about 10 minutes and does not require any downtime. The types of lip fillers used in the procedure contain lidocaine, which is an anesthetic that helps with the discomfort of the injection. Lip fillers are approved for specific uses in people aged 22 and older, including correcting moderate-to-severe facial wrinkles and skin folds, increasing fullness of lips, cheeks, chin, under-eye hollows, jawline, and back of the hand, and restoring facial fat loss in people with human immunodeficiency virus (HIV) . It is important to note that only FDA-approved dermal fillers should be used, and they should only be injected by a licensed healthcare professional using a syringe with a needle or a cannula.