| abstract |
The hyaluronic acid filler according to the present invention exhibits improved high viscoelastic flow characteristics, and has advantages of monophasic hyaluronic acid fillers and biphasic hyaluronic acid fillers together, and therefore it maintains the shape while having low moving possibility when injecting into skin, and thus it is excellent when used for improving wrinkles, augmentation of soft tissues such as cheeks, chest, nose, lips and hips, etc., and correcting contours, and the duration time in the human body is increased and side effects are small, even if a small amount of crosslinking agent is used during the preparation process |