Increasing air pollution has a significant impact on human skin. Ultraviolet radiation, air pollutants, oxides, particulate matter, ozone, and cigarette smoke expose the skin on a daily basis. Although our skin acts as a biological shield against these chemical and physical factors, repeated exposure to these pollutants can have a significant as well as negative impact on our skin. Exposure of the skin to these air pollutants are associated with skin aging and skin disease....