The sensuous lip

@article{Ulloa2004TheSL,
  title={The sensuous lip},
  author={F.A.C.S. F.I.C.S. A.R.C.M. F.I.S.A.P.S. Mario Gonz{\'a}lez Ulloa},
  journal={Aesthetic Plastic Surgery},
  year={2004},
  volume={16},
  pages={231-236}
}
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.