39, white female, what is the most cost effective saggy neck treatment? (Photo)

Considering neck condition visible on this image, you seem to be a candidate for neck lift. Only on the basis of in person evaluation, one experienced, board certified plastic surgeon with expirience in this surgery, can decide whether anterior neck lift or more extensive posterior neck lift (with skin excision) may be better procedure for your condition. Hope this helps. Good luck.

A chin implant may be able to improve the definition of your chin and jawline, but it may not be sufficient on its own if you have significant sagging skin in the area.

Other options to consider may include a neck lift, which can tighten the skin and muscles in the neck and jawline, or a lower facelift, which can address sagging skin and jowls in the lower face.

If cost is a concern, you may want to consider breaking down the procedures into smaller steps over several years. For example, you may start with a non-surgical treatment such as dermal fillers or Botox to add volume to the chin and jawline and improve the appearance of wrinkles or lines in the area. From there, you could consider a chin implant or other surgical procedure as your budget allows.

It's important to consult with a board-certified plastic surgeon to discuss your options and determine the best course of treatment for your individual needs and goals. They can provide guidance on which procedures may be most effective for you, as well as advise you on the best way to approach treatment to achieve the desired results while staying within your budget.