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So a sunscreen can have a high PPD or UVA-PF, but not offer good protection from the longest UVA1 rays (380-400 nm). What makes the UVMune sunscreens unique is that they contain Mexoryl 400, which was specifically developed to fill the 20 nm gap in the 380-400 nm range. An area not well covered by other UV filters.
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is uv protection 400 good