“Filler generally refers to any substance that can help lift or angle tissue—it’s most commonly composed of hyaluronic acid,” says Dhaval G. Bhanusali, MD, a board-certified dermatologist in New York City. “Fillers tend to be good options for those who have volume deficits.” With chin filler, specifically, “we look at if there is an imbalance, with chin protrusion appearing disproportionate with the rest of the face,” he explains. Colloquially speaking, you might call this a “weak chin.”
