A permanent method of augmenting the lips is accomplished by surgically advancing the lip forward, with incisions placed inside the mouth. A dermal-fat graft, taken from the deeper layers of the skin, may then be positioned under the mucosa (the lining of the lip) to add additional "plumpness." Injecting fat collagen or other substances for lip augmentation is another alternative. The correction is not permanent, and injections must be repeated periodically to maintain results.