Vertical Stretch (IMAGE) University of Pennsylvania School of Medicine Caption Software visually maps horizontal movement of the face. (Left) Before injection, the light blue in the center indicates compression of the skin between the eyebrows and above the nose. (Right) Two weeks after injection. The new colors show decreased compression. Credit Penn Medicine Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.