Unlike hyaluronic acid fillers, which often dissolve within a few months, Bellafill® creates a lasting improvement in your skin. Its tiny, polymethyl methacrylate (PMMA) microspheres are suspended within a base of smooth collagen gel. Once injected, Bellafill® immediately reduces the look of smile lines. Over time, your body uses the microspheres to create a “scaffold” onto which your own collagen can develop.1,2 This collagen forms a foundation that adds volume to wrinkles, reducing their appearance. These natural-looking results feel soft and smooth through 5 years.