Can I Get a Facelift if I Already Have 3 or 4 Syringes of Juvederm in my Face?

The juvederm in general is helpful to replace volume loss in your face. i would suggest however that you wait until you feel the Juvederm has dissolved before having a consult for your facelift. 4-6 months.  As a surgeon I need to examine the face in its stable condition  to determine the areas that require surgical lifting.

No problem. You age by three factors - sagging (through gravity and time), loss of volume (counteracted by fillers), and skin texture (determined by environmental and genetic factors). Your fillers should enhance your effect of the lifting if placed appropriately by addressing one of the causes of aging