An arm lift, back lift, or thigh lift produces results that are permanent because skin and tissue are trimmed to reduce sagging and sculpt a slimmer circumference. That said, the results of any lift can be affected by various factors. As you age, your skin will naturally loosen due to a loss of collagen and elastin. However, this tends to affect the results of a lift only to a small degree. The biggest contributing factor to your body procedure results is your weight. Provided that you attend to your diet and maintain a regular exercise practice, you can expect to enjoy enduring effects from your contouring surgery.