Is it safe to have both Stylage and Revofil in my temples?

I have used multiple types of fillers in the same area both personally and professionally. I usually recommend waiting until you see the final result of one filler before adding the other, but this is only make it easier to see which had the best effect, not because it’s harmful to inject them at the same time. I am not familiar with Revofil,  it if it is safe for your cheeks, it is safe for your temples. 

Neither Revofil or Stylage are approved for use in the US, atleast to my knowledge and so I do not have experienced with these two products. I prefer to use Restylane Refyne or Sculptra when treating the temples.