The longevity of results largely depends on the age of the client, their metabolism, the amount of exercise they do regularly, and the normal blood flow to the face. For example, someone who is young with a fast metabolism and more blood flow to the face will most likely burn through filler quicker than someone who is older. In addition to this, filler in certain areas of the face tends to last longer than others. Lip fillers only last about 6 months due to how much we move our mouths. However, filler in a less mobile area such as the tear troughsand cheeks last around a 1 year. Each filler product is uniquely formulated, therefore some products will last longer than others. Please remember individual results will always vary.