I'm curious about administering nasolabial fold fillers.

My cheeks have sagged, and I have prominent laugh lines, so I'm considering laugh line fillers. Since I'm consulting at two places, I found that the prices for domestic and imported fillers vary, and because a lot of filler is needed to fill the sunken areas, the cost can be quite high. I'm curious about how long the effects last relative to the amount and price of the filler. Alternatively, I'm also thinking about investing more money and trying Ultherapy.