Which is the best filler for these so-called smokers’ lines? (never smoked).

My preferred filler for the perioral lines and for improving definition of the vermillion border is Restylane Silk. Juvederm Volbella and Belotero Balance could be used as well. 

I find that hyaluronic acid fillers tend to be the best for this area.  I always recommend a consultation to make sure you are a candidate for this treatment and for your doctor to determine the best products for you.  Some of my favorites in this area are Juvederm Ultra and Restylane Silk.  When addressing the vertical lip lines you may have bruising and/or swelling post treatment.  When using filler in this area, the results tend to last 9-12 months.  Done well, you can expect a very nice, natural improvement of both the vertical lip lines and the vermillion border as well.