How long after Radiesse should I wait to inject Sculptra at the same site?

Hello,
Thank you for your question. You can inject Sculptra at any point, it is safe to use over other fillers. Good luck! 

As the panel members chimed in, having both products together does not pose any problems.  In fact, the combination of using more than one injection product usually has a synergistic effect that compliments the end treatment goal.  There are limitations vs. benefits with each product, but for volume, shaping, lifting, on contouring, these two products work well together.  Having both products injected at the same time is not recommended due to swelling which will influence what the injector is observing.  Other than a short waiting period in between visits, there is no problem.

I think it would be fine for you to have Sculptra injected at any point now into the same area you had Radiesse in September of 2016.  There is no interaction, but some of the effect you have from the Radiesse will begin to fade while the Sculptra gradually fills it.