V-Y lip advancement is a technique of advancing a part of the lip from the inside to enhance it. It essentially leaves no scar since the incision is on the inside of the lip. It is limited, however, in that it can only advance a moderate width of tissue. Other options are mucosal advancement where a portion of the skin just above the vermillion (the red lip) is excised and the vermillion is rolled outward. Since the scar is at the junction of the red and white, it essentially disappears. Another technique is to remove skin from just below the nose. This scar is hidden in the crease. Additionally, there are some relatively inert implants that occasionally work. See a Plastic Surgeon with significant experience in this area.