The obvious benefits of quitting smoking on the skin may include slowing down the aging rate of the skin, improving dry skin, and improving enlarged pores. 1. Slow down the aging of the skin: cigarettes contain a lot of tar, nicotine and other substances, through the lungs into the blood circulation to form oxides, accelerating the aging of the skin, after quitting smoking, the aging of the skin may be slowed down. 2. Improve dry skin: cigarettes contain a lot of acetone, acetone is easy to dissolve in the skin surface oil, so that the skin becomes dry, after quitting smoking to reduce the stimulation of acetone may improve dry skin. 3. Improve large pores: the dust particles in the smoke will be adsorbed into the skin pores, which may cause large pores, after quitting smoking will reduce the smoke which may improve large pores. Smoking is not only harmful to your skin but also to your health, so it is recommended to quit smoking.