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The longevity of tear trough filler varies depending on individual factors such as metabolism, lifestyle, and the type of filler used. Generally, the results of tear trough filler can last between 12-18 months. Some patients may experience longer-lasting effects, while others might need touch-ups sooner to maintain their desired look. One thing we do now know based upon MRI studies is dermal filler can persist for many years after treatment therefore people do not need to routinely get this repeated every year and it should be assessed first by their injector.