What is the best way to remove neck wrinkles?
It depends on what is causing your wrinkles. It could be sun damage and while a face or neck lift might help, sometimes resurfacing is a better option. If the wrinkles are caused by loose and saggy skin, then a lift of some sort may be the best option. It could also be a combination. You should consult a board certified plastic surgeon and get an idea what has caused your wrinkles.
Neck wrinkles can be addressed by a neck lift and/or by non invasive laser skin tightening. A consultation with a plastic surgeon can help you determine which procedures are ideal for you.
Neck wrinkles can mean several kinds of problems, which can best be evaluated by a plastic surgeon in-person. Guessing from your 46 year age, you may or may not be developing vertical bands from loose skin and lax internal support - these really only improve with a neck lift or facelift.
Another common cause of neck wrinkles are the horizontal (collar) lines. And finally you may have texture changes in the skin giving surface lines and irregularities. These are probably the result of hereditary and environmental effects on the skin, and from motion. Sun protection and moisturizing are the simplest steps. Next would be minimally invasive treatments like Intense Pulsed Light (IPL), laser skin tightening, and light peels.
Finally, a neck lift will also improve the latter changes, but is often best in conjunction with those other treatments. Call your local board-certified plastic surgeon for a full evaluation.
There are some minimally invasive ways to improve neck lines, such as Botox, CO2 laser resurfacing, or chin liposuction. These are not likely to be effective in your age group.
In your age group it is likely that you would need a neck lift or a mini facelift. A mini facelift would be done with local anesthesia in two hours and have a 2-3 day recovery. A full neck lift would have a longer recovery, but it would have more impressive results.