Generally speaking, a neck lift in NY performed by a highly-skilled, experienced, and board-certified surgeon can last for 10-15 years or more. Many other factors can determine the longevity of your results. For example- how severely your skin was sagging when you had this procedure, your age at that time, and how quickly your body ages. Every person has a different body. And the rate at which the collagen level decreases varies from person to person. Collagen is an essential protein that gives your skin the strength to keep supple and pliable. In general, collagen production starts to decline once you enter your 30s. As a rule of thumb, each person is different, and following different lifestyle choices can also affect collagen production. A healthy diet, well-hydrated skin, and regular exercise can help boost collagen production. Environmental factors such as over-exposure to sun rays can negatively affect collagen levels. In addition, dietary habits such as excessive alcohol or tob