I had Restylane fillers under my eyes ~6 months ago. They aren't completely gone. Can I get a refill with a different one?

Yes, you can try a different filler. Under eye bags and lines can be permanently corrected with surgery or temporarily camouflaged with fillers (Restylane, Belotero, Volbella).There are great non-surgical options to fill in under eye depressions and hollowness. Using dermal fillers, a liquid eye-lift can be performed. A dermal filler such as Restylane would be placed in the cheek and tear trough to hide the depression or bag underneath your eye.
Surgery would require a fat-repositioning lower lid blepharoplasty. In this surgical procedure, fat from the eye area is moved into the tear trough depression filling the actual depression. 
I hope this helps!

Thank you for your question. It is safe to use different hyaluronic acid fillers (Restylane, Juvederm, etc.) together. An experienced provider will be able to select the appropriate product to use under your eyes. I hope this helps!

Thank you for your question. Yes, it is safe to use 2 different hyaluronic acid fillers (Restylane and Juvederm) together. Please make sure to see an expert injector as he/she will be able to select the appropriate product to use under the eyes. Best of Luck!

You can certainly use both Restylane and Juvederm.  They are both hyaluronic acid fillers so it is safe to use both.  You can discuss with your injector and see which filler is best for you. 

Neither Restylane nor Juvederm are the best for this area. either Belotero or Revanesse Versa would be better and there is no problem mixing 2 types of hyaluronic acid fillers