A split-face comparison of a new hyaluronic acid facial filler containing pre-incorporated lidocaine versus a standard hyaluronic acid facial filler in the treatment of naso-labial folds.

@article{Levy2009ASC,
  title={A split-face comparison of a new hyaluronic acid facial filler containing pre-incorporated lidocaine versus a standard hyaluronic acid facial filler in the treatment of naso-labial folds.},
  author={Phillip M Levy and Koenraad L V De Boulle and Herv{\'e} Raspaldo},
  journal={Journal of cosmetic and laser therapy : official publication of the European Society for Laser Dermatology},
  year={2009},
  volume={11 3},
  pages={169-73}
}
This split-face, single-blind study compared the comfort and ease of injection of a new hyaluronic acid facial filler containing pre-incorporated lidocaine (Juvederm ULTRA 3) versus the established hyaluronic acid facial filler Restylane-Perlane. A total of 126 individuals were treated with both products, randomly assigned to the right or left naso-labial fold. Injector assessment-indicated mean injection pain, pain of massaging the injected area and post-injection discomfort (based on a scale… CONTINUE READING

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