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Folic acid (FA) is the synthetic form of folate (vitamin B9), present in supplements and fortified foods. During ultraviolet (UV) radiation FA is degraded to 6-formylpterin (FPT) and pterin-6-carboxylic acid (PCA) which generate reactive oxygen species (ROS) and may be phototoxic.The aim of the present study was to investigate the production of ROS and phototoxicity of FA, FPT and PCA in skin cells...
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