Fillers on nasolabial fold? How many CCs? How often?

If your goal is only to soften the left nasolabial fold then 1-2 syringes of a dermal filler should be adequate. However, there is a lot of potential to place filler in other areas of the face to improve your symmetry. The extent of the treatment and the volume of filler will really depend upon exactly what you are trying to achieve. 

Usually a syringe or two of filler often does the trick. You would have to be seen in person to be properly assessed.  Good luck.

There are several fillers on the market that can be used to inject the nasolabial folds.  Some of the more common ones are Restylane and Perlane.  It is difficult to say how much product you require without examining you in person.  An evaluation with a board certified plastic surgeon, facial plastic surgeon, or dermatologist can help you to understand what your options are, what the differences between the various fillers are, and how much of a given product you might require.  The fillers last, on average, 6-12 months depending on the particular filler used.  Best wishes.