Hello and thank you for your question! It would really help to see a picture of the area you are concerned about. However, filler is a great option to achieve smoother lips. When filler is placed it should be placed in a manner that not only increases the volume of your lips so that the lines disappear but also in a manner that accentuates the natural shape of the lips so you don't get a "tube" lip. I hope this helps and make sure you review many before and after pics to make sure the style of lip augmentation performed by the plastic surgeon is what you are looking for. I have attached a before and after of a patient whose lips had some lines but is now much smoother, without looking over done and still has a nice shape. Hope this helps!Ankur Mehta MD