Hello! My name is Jessica, I am a physician assistant, and one of the providers at Aesthetic Skin - Winnetka & Chicago. This is a great question. Yes, fillers can effectively soften deep marionette lines and lift the downturned corners of the mouth, restoring a smoother and more balanced lower face — but achieving natural results depends entirely on placement, product choice, and injector skill. When done correctly, small, strategic amounts of hyaluronic acid filler are used not to “puff up” the area but to restore lost volume and support where the skin has folded or sagged over time. This can subtly elevate the corners of the mouth and reduce the shadowing around the chin without making you look overfilled or chipmunk-like. Overdone results usually happen when too much filler is placed in the lower cheeks or along the jawline, which distorts facial proportions. I hope this helps!