Procedure for Nasolabial Folds After Weight Loss?

From the photo I would say your best bet is a filler. You can choose between all the fillers available but in this area I prefer Radiesse. It lasts the longest and my patients have been very happy with it.

In a new patient, my preference is Juvederm as it's very smooth and is reversible if for some reason you don't like it. The newer Juvederm products, just released have local anesthetic mixed in for a more comfortable injection.

Other options are more permanent fillers, inlcluding your own fat.

My experience is that Radiesse offers the greatest combination of correction and longevity with immediate results for the nasolabial folds. Hyaluronic acid fillers also provide correction, but are less volume efficient and last for less time than Radiesse.

When volume is lost, either by weight loss or by aging, the solution is to replace the volume where ever possible.
On a temporary basis, hyaluronic acids such as Juvederm work well and are quite safe.
On a more permanent basis, fat injection, or in our practice untraumatized fat-fascial grafts (LiveFill(R)) are our first choice.

Filling in the nasolabial grooves is easy and looks great. Juvederm or Restylane ($550 per syringe) or Radiesse ($650 per syringe) are easy to undergo but you probably need 2 syringes to look the best.