If I have IPL on my face in between treatments, will it affect the Sculptra?

In my opinion, it would be fine to have an IPL treatment in between Sculptra treatments. The Sculptra injections are normally placed fairly deep under the surface of the skin and the IPL would not penetrate to that depth.  The IPL should not affect the Sculptra results.  I would recommend discussing this with the physician who treated you with Sculptra though, as your physician may have a different opinion.  

There will be no affect on your Sculptra with any laser, RF, or IPL. There should be no worry whatsoever. There have been numerous studies to show that these procedure have no affect on fillers. With the collagen fillers such as Sculptra, there actually might be a synergistic affect to improve the results of the collagen produced.