Sculptra works by encouraging your body to produce more collagen, the protein that gives your skin structure and elasticity. When injected into the skin, the PLLA particles in Sculptra trigger a natural healing response, stimulating collagen production over several weeks to months. As new collagen forms, the skin gradually becomes firmer and fuller, reducing the appearance of wrinkles and sagging. Treatment usually involves multiple sessions spaced a few weeks apart, with results appearing gradually as collagen production increases. There is little to no downtime after each session.