Studies a few years ago from the University of Michigan (Go Blue) showed that hyaluronic acids (Restylane, Juvederm, Preville Silk) stimulate the body to form collagen where it is injected.
In some areas the effect is incredible. When the forehead "11" lines are injected with both Botox and hyaluronic acid filler simultaneously, more often than not the line does not return even after the Botox has worn off.
In the nasolabial folds, there is also some collagen production. We find that when the filler wears off, usually the lines are not as deep.
A recent episode of "Nip/Tuck" had Dr. Troy injecting his 1 year old daughter's lips so that her mother could make some money from the infants modeling. One year old is a little early to start, but add say 3 decades as in your case and if the lines are bothering you, go ahead and get treated.
Choose your injecting physician carefully. Waiting till you are 35 will not really make a difference in the big picture.