Pain and Safety of Restylane With and Without Lidocaine for Correction of Moderate and Severe Nasolabial Folds

Inclusion Criteria: * Signed informed consent * Men or women aged 18 years or older of Chinese origin * Subjects willing to abstain from any other facial plastic surgical or cosmetic procedures below the level of the lower orbital rim for the duration of the study * Intent to undergo correction of both nasolabial folds(NLF) with a wrinkle severity in Wrinkle Severity Rating Scale(WSRS) of either 3 on both sides or 4 on both sides Exclusion Criteria: * Previous use of any permanent (non-biodegradable) or semi-permanent facial tissue augmentation therapy or autologous fat below the level of the lower orbital rim * Previous use of any hyaluronic acid based or collagen based biodegradable facial tissue augmentation therapy below the level of the lower orbital rim within 12 months before treatment * Previous tissue revitalisation treatment with laser or light, mesotherapy radiofrequency, chemical peeling or dermabrasion in the midface within 6 months before treatment * Scars or deformities, active skin disease, inflammation or related conditions near or in the area to be treated * Other condition preventing the subject from entering the study in the Investigator's opinion