Generally, Sculptra is performed in three separate injections that are roughly three to four weeks apart. This is because we are unable to see the improvement from Sculptra until after the collagen has had time to surround the small beads of active polylactic acid.
Once collagen has formed a latticework around the polylactic acid, then we can see real improvement in the facial structure. You should see some incremental improvement after just one injection of Sculptra.
This is a very sturdy product that leads to a long, gentle improvement of hollowed cheeks over time. You will see new definition with three Sculptra injectable sessions, but even just one session will give you some improvement.