Air pollution contains a combination of micro-particles called particulate matter (a mixture of solid particles and liquid droplets found in the air); particulate matter droplets can be breathed in and harm the lungs and even get into the blood stream. It is theorized that particulate matter can also be absorbed by the skin—clogging pores and producing many skin-related issues.
The Effects of Particulate Matter on Skin
Studies have shown that exposing skin to air pollution (which can change its microflora), creates oxidative damage and inflammation, causing issues such as uneven skin tone, hyperpigmentation, loss of elasticity, wrinkles and premature aging. Prolonged exposure to pollutants can also lead to collagen breakdown.
Exfoliation is important for healthy skin as it will remove the top layer of dead skin, oils, and pore-clogging particulate matter.