Will the cabin pressure of a four hour flight affect the outcome of my Bellafill?

If Bellafill is injected by a certified Bellafill injector, flying should not effect your outcome. You may have some slight swelling and puffiness after injecting which is completely normal and will resolve over several days.  Great question thank you!
 

There are no restrictions with flying after having Bellafill injected. As with any filler, puffiness or swelling is normal and can be expected in many patients over the next day or two after injections. If someone flies after filler they may believe the cabin pressure had an effect, which is not the case. With that said, always be sure to follow-up with your provider with any concerns!

This is a good question, one that I have not been asked before.  I appreciate your concern but want to reassure you that there is no worry.  As suggested by other posters the only concern that I would have is that you may need to return to original injector.  The reason being that most practitioners are conservative with Bellafill because the semipermanent nature. I recommend that you bring up this issue with the injector prior to treatment.  I wish you all the best!