Wrinkles, creases and textural changes on the neck begin to appear as the underlying collagen and elastin fibers of the skin start to break down and wear out. While this breakdown is part of the natural aging process, it can also result from sun exposure, frowning, smoking and smiling. Chronic sun exposure can also cause red and brown spots, which also contribute to the "aging" process. As these changes are taking place, gravity is also at work, pulling at the skin and causing it to sag.
In addition to sun avoidance and protection, numerous treatment options are available to treat aging necks, including Botox, liquid injectable silicone, other fillers, chemical peels, very light burning (electrodessication) of the red and brown spots, laser resurfacing and skin tightening.