Corner lip lift with filler?

Thanks for the question and for sharing your experience. Yes, fillers can be used to soften downturned corners of the mouth and to improve marionette lines. I like to start my having the patient open up their mouth and then injecting a small bolus of filler directly into the oral commissure (corner of mouth). I follow this my injecting filler into the marionette lines using either a fanning or cross hatch technique. My preferred fillers for this case are Juvederm UltraPlus, Restylane, Refyne and Defyne. I sometimes will use a cannula to treat the pre jowl sulcus as well. See an experienced injector to discuss your concerns and to come up with an appropriate treatment plan.