Follow-up question: 1cc in lips didn't last past 1 month. If I add 2cc, will it last longer? Would Juvederm last longer?

Thank you for sharing your question. From the photograph, you lips look full enough. You can always add more to make it last longer, but then you won't look natural until the product dissolves. It's more important to have a natural appearance. An experienced doctor would know which product is best for your lips. Make sure you injector uses many types of filler products so the right one can be chosen for you. Good luck!

I encourage you to return to your injector for an evaluation.  Switching to a different filler may be beneficial as certain fillers are more viscous than others.  If you wanted more volume, you could also consider adding more product. 

Thank you for your question, Most doctors will start with one-syringe to avoid overfilling. These fillers, (Volbella, Restylane, Juvederm) are good to create a symmetrical and full lip. PDO NovaThreads can also be used to improve shape and also provide lift. Fat or implants are a permanent alternative. I recommend getting a formal evaluation with a facial sculpting expert. Best, Dr. Emer