>> announcer: the following is a paid advertisement for cold plasma sub-d by perricone m.d. how old does your neck make you look? would you like to take years off your appearance and help remove some of the signs of aging on your neck for a look that is firmer, tighter and more youthful? well, now you can. introducing dr. perricone's cold plasma sub-d. sub-d is specifically formulated for the area called the submandibular. often neglected, the skin in this area has unique needs, and cold plasma sub-d helps tackle the most common signs of aging on the chin, jawline, neck and decollete. coming up in the next half-hour, you're going to meet the creator of sub-d, and de