Smoking's tendency to cause wrinkles is not some old wives' tale. Smoker's wrinkles form around the lips because of the heat from the tips of cigarettes [source: Hurt]. Repeatedly pursing your lips while smoking a cigarette can lead to those wrinkles, also. But smoking can affect the health of skin all over the body. Nicotine contracts the blood vessels in the skin, and those contracted blood vessels make it more difficult for the blood to carry oxygen and vitamin A to the skin's surface. On top of that, many of the chemicals in cigarettes are harmful to proteins in the skin like collagen and elastin. In the long run, smokers' skin becomes less elastic, and sags and wrinkles earlier than the skin of non-smokers'. After someone quits smoking, though, the quality of their skin can improve after only a few weeks. Some of the wrinkles from smoking may be permanent, but the increased elasticity and improved skin health will make those wrinkles less pronounced [source: American Academy of Dermatology].