The relationship between molecular concentration of hyaluronic acid and scope of application is closely linked. For external use only, the major purpose of low molecular weight hyaluronic acid is to keep your skin stay in moisture condition. However, high molecular weight hyaluronic acid is being performed by subcutaneous injection. The main goals are to complete local filling and cushioning or smooth and improve static wrinkles.

At present, the widely application of hyaluronic acid injection is utilized in nasal dorsum /nose tip cushioning, lips or earlobes augmentation as well as eye grooves and nasolabial folds correction. In addition, it has a satisfactory result in yourthlites (lower eyeliner) creation for pretty women with charming eyes.

In general, the effect durations of hyaluronic acid injection are between six and nine months that may vary from the particular positions applied. The effects usually do not last more than one year. Therefore, it is necessary to receive repeated injections in order to maintain a refresh and youthful expression.