We asked all the team at Cityskin about this one and to be honest we hadn’t heard about using dermal filler to treat epicanthic folds! We feel that it is more of a surgical treatments and it would be best to discuss this with a plastic surgeon.
Thanks for the question though!

 

Dr Brown discussing whether dermal fillers can be used in epicanthic folds

https://youtu.be/fy3GelDFeBU