Restylane Refyne for Correction of Horizontal Neck Rhytides

This will be a prospective, evaluator-blinded, split--neck, clinical study in which patients will be randomized to 2 groups. The first group will receive up to 1cc of Restylane Refyne into the rhytides on the right side of the neck utilizing a 27---gauge cannula, while the left side will be injected with a sharp 30--gauge needle. The second group will be reversed with the left side treated with Restylane Refyne utilizing a cannula and the right side treated with a sharp needle. Both groups will be utilizing the same safety and comfort protocols established by the practice which include the use of topical numbing cream (B.L.T.), cleansing with alcohol, and a cold ice pack at the site of injection after the procedure. Before and after the procedure a set of blinded evaluators will be grading the subjects' static horizontal neck lines using a validated 5--point grading scale. The blinded evaluators will also be grading the subjects side effects such as bruising and swelling 24---48 hours after the first treatment. A second treatment is allowed on Day 30 for those who have not achieved optimal correction. Either on Day 30 or Day 60, a final assessment with digital photography using Canfield's Vectra imaging system, along with a patient questionnaire on satisfaction, improvement (GAIS), side effects, and pain levels during and after the procedure will also be recorded.