Can Juvederm or Restylane fill in the vertical lines on the nose below the bridge?

Without a photo I can only guess that the vertical lines you describe below the sides of the bridge of the nose are the very common problem referred to as "bunny lines."  When present, they can be easily and quickly treated with a couple of droplets of a neuromodulator, such as Botox, Dysport or Xeomin. Not everyone has these lines upon expression. When present, however, I routinely treat them immediately following the treatment of the vertical glabellar scowl lines (frown lines, eleven lines)above the bridge and between the eyebrows. In general, in my Upper East Side Manhattan practice,  I prefer Belotero Balance for fine lines and superficial wrinkles on the nose. Belotero has little to no tendency to give rise to the unwanted bluish Tyndall Effect when injected superficially into fine etched wrinkles. In my Israel satellite office, where a far greater number of regulatory agency approved fillers are available, I prefer Teosyal Redensity II for this purpose. Juvederm and Restylane have also been used for these kinds of wrinkles, especially when diluted.

Yes, while either Juvederm UP XC® or Restylane® can fill those vertical nose lines, Belotero® may be the best filler choice for those lines since it has a low viscosity (very thin) and is great for very superficial lines.