How much does a Restylane Defyne session typically cost?

Thank you for this question.  Restylane Defyne and Refyne are new members to the Dermal fillers by Galderma.  It really helps to expand the versatility of what we can do with non-surgical injectables:
Restylane Lyft, Silk and traditional Restylane - helps provide support to the facial tissues (e.g. cheeks with Lyft) or for precision softening (e.g. fine lines around the mouth).  
Restylane Refyne and Defyne - used in areas on the face that have motion and expression (e.g. nasolabial and marionette folds or accessory smile folds).  Refyne is typically used more superficially and Defyne at a deeper plane.
With Restylane Defyne (and Refine), the product is more elastic and integrates more into the tissues than their sister products (Restlyane, Lyft and Silk).  This allows for the product the stretch with facial expressions and in repose.  This provides for a more natural softening of the shadows associated with expression.  The results typically last a year, and if you decide to have another treatment sooner, you usually require less product to achieve similar results.  The cost will depend on the skill level of your injector, the areas of concern that you are addressing and the amount of product required to help you get the desired results. In our practice, the treatment costs starts at $799.
I would recommend that you visit with an experienced injector who understands the nuances of the different products and can develop a customized approach to address your aesthetic goals.

Thank you for your question. On average it is approximately 600-650 per syringe. 
Hope that helps!!