Will my lips ever return to normal?

Part of what makes Juvederm a great product for the lips is its ability to "bind" water, giving the lips a certain plumpness that mimics the youthful lip.  However, 2 ml of Juvederm is quite a lot of product at one time for the lips and the product can last quite long in some individuals. Dissolving the product is not an "all or none" proposition. You can titrate the dissolving agent to remove a little bit of product at a time until you are comfortable with your appearance. It will not result in lumpiness. 

Thank you for sharing your recent experience with lip injections. The definitive way to reverse the effects of your lip filler is to dissolve it with an enzyme called hyaluronidase. Once the enzyme is injected, the existing filler will dissolve within 12-24 hours. I understand your concerns about lumpiness, however when injected by an experienced injector, this is not likely to occur. Without intervention, Juvederm in the lips can last between 6-9 months. If you prefer, you can let the filler dissolve over time and your lips will return to normal. Regardless of your preference, I recommend following up with your injector to discuss your concerns.

The product is typically present for 6-12 months, but does metabolize gradually.  Your lips will return to their pre-injection state when the product is gone.  If you want to speed up that process your option is the hyaluronidase.