231 Facial lentigines formation results from a complex interplay between solar ultraviolet radiation (sUVR) and ambient particulate matter (PM)

Chronic exposure to sUVR and, more recently, exposure to PM have been reported to be associated with more facial lentigines. In most urban environments, human skin is exposed to both environmental factors. In this epidemiological study we therefore assessed their combined effect on lentigines formation. We studied facial lentigines in 799 elderly Caucasian women (mean age 73.5 years) of the SALIA cohort using the SCINEXATM skin aging score....