As the premier provider of Restylane in San Diego, we use Restylane to reduce the appearance of dark circles that often occur underneath the eyes. People get these dark circles due to the fat in their lower eyelids bulging. The tear trough is the hollow area underneath the eyes which inflates this bulge. So, when you receive a Restylane injection, the fillers are placed into the tear trough. This reduces the darkness of the circles and restores their natural complexion.