Is it safe to change the type of filler for the same area after 6 months?

Thank you for your question. In short, yet. Experienced injectors tend to leverage the benefits of different hyaluronic acid gels for the best result that is unique to each patient. Please keep in mind that Voluma is the first facial filler approved by the FDA for the non-surgical treatment of the cheeks. Always consult with a board certified facial plastic surgeon.
Best wishes,

Hello,Thank you for your question. It is safe to use a different filler in the area. One of the best fillers on the market for that location would be Restylane ReFyne. It improves the area without looking too full. Good luck! 

The answer is that many well trained injectionists will use multiple fillers throughout the face depending on your specific needs, the tissue quality, and the desired outcome.  In the NLF's, I generally prefer Juvederm Ultra Plus XC towards the top of the fold but do not usually ameliorate the entire fold because it takes away from the look of the overall cheek. 
As for Revanesse Ultra, this is not FDA approved in the United States and so the physician or injector who is using it currently is actually not allowed to offer this.  I would steer clear of this type of "special" and go with someone who has experience and who offers solid results and not just simply good deals. 
I hope that helps!  

Yes, you can change fillers. I can't speak to Revanesse Ultra because it's not FDA approved. However, for nasolabial folds, I recommend a combination approach with fillers for the folds themselves and to provide anatomical support, Sculptra for collagen building, peels and lasers for texture and tone, with radiofrequency/ultherapy for skin tightening. I recommend getting a formal evaluation with a cosmetic dermatologist. Best, Dr. Emer

Thank you for sharing your question.  If you have reached a cheek size that you are happy with you can certainly move forward with additional placement of a thinner filler like JVD into the nasolabial folds to smooth the transition from your cheek to your lip.  Due to US restrictions I have never used Revanesse Ultra.  Hope this helps.

Thank you for
your question Tankgirl6977. Voluma is a
filler used to enhance the appearance of the face. I normally start by restoring volume to the mid-face using Voluma. If further enhancement is desired after this treatment I normally place Vollure directly into the nasolabial folds. Revanesse ultra is not available in the United States so unfortunately I do not have experience with it. Please
consult with a doctor for specific recommendations.  Good luck!

Yes. Most experienced injectors will use more than one filler on an individual patient. It allows us to customize the treatment for your individual needs. Allows consult with a board certified plastic surgeon with a lot of experience in injectables. 

Thank you for the question.  Yes, it is all right to use different hyaluronic acid fillers, either overlaid or different types for different types of the face.  I cannot comment on Revanesse since it is not FDA approved in the USA, thus I have no experience with it.  My current favorite filler for the NLF area is Juvederm. 

Thank you for your question.  Yes, in general, you can switch fillers with no problem.  I prefer to use Juvederm for the nasolabial folds.  Beautiful and natural results can be achieved.  Please be sure to see an expert injector for an in-person consultation to fully discuss your goals and expectations in order to determine the best treatment plan.  Hope this helps and best wishes! 

In general, fillers can overlap in the same area without any concerns. I don't know about Revanesse because it isn't FDA approved in the US except that it is an HA product. I have never encountered any problems with the US products in the same area as Juvederm. I would be more concerned regarding the person doing the injection than the price of the filler. This is not a recommended way to choose providers and it almost always comes down to "you get what you pay for". Most often, discounted filler is related to providers trying to get clients to come through their door because they need more business and are willing to take less for their services. You have to always question why there are doing this.