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BACKGROUND	Pronounced nasojugal groove ( tear trough deformity ) is one of the landmarks of aging .
BACKGROUND	Hyaluronic acid filler can be used for attenuating the nasojugal sulcus but irregular lumpness and overcorrection are common adverse reactions .
OBJECTIVE	We evaluated the effect of Restylane Vital with its specialized injector on volume correction and skin tone of nasojugal groove .
METHODS	Ten Korean women were enrolled in this study .
METHODS	Subjects were randomized to be injected a stabilized hyaluronic acid-based gel of nonanimal origin ( NAHSA injector , Restylane Vital , Q-med ) on one side of nasojugal groove , with the other side paired as control .
METHODS	The treatment was performed in one session .
METHODS	Outcome assessments included standardized photography , mexameter , and spectrometer for skin tone , global evaluation by blinded investigators , and patients ' self-assessment .
METHODS	An assessment was made before treatment , immediately after treatment , and 1 , 3 , and 6 months after the treatment .
RESULTS	All patients reported a high degree of satisfaction .
RESULTS	Duration of overall effect varied among the patients .
RESULTS	Correction of the nasojugal groove with a Restylane Vital injector causes minimal tissue trauma and allows exact placement of hyaluronic acid .
RESULTS	Restylane Vital injector offers more predictable results and a lower incidence of adverse effects than more commonly used techniques .
CONCLUSIONS	Hyaluronic acid filler intradermal injection with special injector is a safe and effective method for correction of nasojugal groove .

