Both Bellafill and Sculptra add volume to the face by eliminating fine lines and wrinkles. Bellafill offers nearly immediate results that last about five years and need no maintenance treatments. On the other hand, Sculptra injections take up to 8 weeks to appear and require yearly touch-ups. Individual Sculptra injections cost slightly less than Bellafill, but this difference is offset by the maintenance needs associated with Sculptra.