For preventing a wrinkles forming on neck.

With a mirror exercise.
Sit before mirror, fingers put of one hand on clavicle below, fingers of the other hand on chin. Low lips corner, like you are hating, but lips are forming horseshoe, neck muscles are stretching. And if you are training right, you feeling a muscles stretching, and in a mirror you will see ,like skin on neck raise up, a load muscles a few sec after relaxing theirs. Every day train till 15 times, and doing alone, focused.

For to say sounds O-U-I ,as lips rolled till the tube,and articulatory  stronger,to say O-U-I for strengthening a muscle neck assisting.

Contrast alternate compress for neck.
Take two plates, in one add cold water, other with hot. And in every add towel, and from cold water take towel, press her, and apply on chin,she good lies on a neck, and put again in plate, and same doing with hot water, change compresses within 10 minutes, hot water will adding, repeating till two times.

After towels will rice a hot water, dry, this procedure is gymnastic for blood vessels,which from a hot water will vasodilate, and from cold will narrow.

Cluping a chin.
Towel wet in cold water, press.
With the hand right take for corner and to clap chin along and along neck low side, till 14 times, put towel in the left hand and clap right cheek side along. And when you walking, head is raised up, look before itself.