Hi there, PDO threads have a long history of surgical use and are very safe. They area a great option to help tighten and lift the neck skin if you are not interested in surgery. A consult would be helpful to see how much laxity there is in the skin and if you are good candidate. With a thread lift you will see an immediate tightening. I also would recommend collagen induction treatment either with the smooth/twist threads and/or microneedling treatment for an overall improvement. Hope that helps!!! Dr. Lussier
