Lip augmentation can increase the size of the upper and lower lips. Many women complain that their lips are too thin, and that they cannot wear their lipstick as they would like. Collagen, fat injections, and other grafting materials are commonly used to plump thin lips. There are many different surgery options to the size of your lips. Discuss your concerns with your Oral & Maxillofacial Surgeon to determine the procedure that is best for you.