Biostimulator fillers such as Sculptra and Radiesse are a special category of injectable treatments that not only “fill” space like traditional hyaluronic acid (HA) fillers – but also stimulate your body to produce its own collagen and elastin over time. Collagen is a key structural component of smooth, healthy-looking skin. As you age, your body’s collagen production decreases. In fact, you lose about 1% of collagen per year starting in the mid-to-late 20s, and this loss becomes more significant after age 40. Biostimulator fillers trigger your body’s own collagen synthesis improving firmness, elasticity, and texture over time, which leads to more natural, gradual, and long-lasting rejuvenation.