Hyaluronic Acid Injection is a non-operative cosmetic procedure that is used to reduce the appearance of facial folds, and fine lines and wrinkles for facial rejuvenation. Hyaluronic acid (HA) is found naturally everywhere in the body, but it is in its highest concentration in the joints, eyes, and skin. HA in the skin attracts water and thus hydrates more the skin. With aging, the fat, muscles, bone, and skin in the face begins to decrease and lose their volume. This leads a sunken or sagging appearance of the face. Injectable hyaluronic acid, which is a type of temporary dermal filler, corrects the sunken or sagging appearance on the face and helps increase the volume in the lips.