How Often Are Restylane Procedures Needed to Maintain Results?

Restylane filler treatment longevity is variable. I would agree with the previous answers that suggest your results will last LESS than one year. However, as other physicians have commented, results and patients vary. The results you see with your first injection will give you a very good idea of the future longevity of the treatment. I usually tell patients that 6 - 9 months is reasonable but these numbers do vary in both directions. However, the results are temporary and repeat treatment is required to maintain the effect.
Best,Stephen Weber MD, FACS

I truly disagree with the majority of the expert posters on this issue of longevity of Restylane. I find if you get 3 months of effect than you should be very happy. 

Restylane can be used to fill the tear troughs, which are hollows between the inner portion of the eyelids and the cheeks.  Restylane will typically last between 6 and 9 months, though I have seen a year or more in some patients. Because the skin and soft tissues are very thin in this area, Restylane injection to the tear troughs is technically more difficult than in most other areas.