Martina C. Meinke, Felicia Syring, Sabine Schanzer, Stefan F. Haag, Rüdiger Graf, Manuela Loch, Ingo Gersonde, Norbert Groth, Frank Pflücker and Jürgen Lademann Radical Protection by Differently Composed Creams in the UV/VIS and IR Spectral Ranges Photochemistry and Photobiology 89
Free radicals in the skin are not only produced in the UV spectral range, up to 50% are formed in the visible and infrared spectral range. Therefore, protection strategies for these spectral ranges need to be provided. In this study, we could show that both antioxidants and physical filter can reduce radical formation in the IR spectral range and that a combination of physical and organic filters shows best protection in the UV/VIS spectral range. Sunscreens which contain organic UV filters, physical filters and antioxidants ensure protection in the complete solar spectrum.
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