>> hi, everyone. i'm courtney thorne-smith. don't change the channel because in the next few minutes, you're gonna learn about a breakthrough product that could help take years off your appearance. but here's the thing -- you don't put it on your face. want to learn more? stay with us. >> announcer: next, a paid presentation from perricone md for cold plasma sub-d, the first-of-its-kind treatment for the area of your body that can actually age you most -- your neck, hosted by network television star courtney thorne-smith and featuring some of the most dramatic before-and-after photos you've ever seen, brought to you by guthy renker. when you look at yourself in the mirror, does your neck look older than your face? >> the texture just looked like crepe paper, like someone, you know, wrinkled it and gave it back to you. >> it was like, "this is awful. whose neck is that? that doesn't even belong to me." >> announcer: are you seeing more signs of age from the chin down? >> it's like,...