González Ulloa M
Dalinde Medical Center, Mexico City, D.F.
Aesthetic Plast Surg. 1992 Summer;16(3):231-6. doi: 10.1007/BF00190069.
The author uses Zyplast to help increase the volume of the upper or lower lip. It is emphasized that there is a clear bilobulation of the lower lip which creates the appearance of a beautiful mouth. His injection of Zyplast demonstrates a technique that helps to emphasize this bilobulation.