How does the environment affect my skin?
Research conducted by L’Oréal in Mexico City and Shanghai showed that skin problems associated with acne, including increased sebum production, were far more prevalent among participants subject to regular exposure to pollution than those living in less polluted areas.[1][2]
Other studies, conducted on over 200 women living in polluted vs. non-polluted regions of mainland China, have shown a visible increase in pore size among participants living in more polluted areas, as well as oilier-looking skin.[3]