The length of time a filler lasts is related to the specific area of the face and the product used. Some products are stronger and take longer to be re-absorbed. Thinner products may absorb faster.
Other factors that contribute to filler longevity include the area it is injected. For instance, in the lower eyelid or nose, where there is very little facial movement, the filler will last a longer period of time, often lasting 1 to 2 years. In the lips, on the other hand, there is a large amount of motion; therefore, lip filler often does not last longer than 6 months. The interval between injections relates to several factors, including how the patient perceives their appearance.