Skin barrier part 2: Sun protection factor (SPF), PA level, How to choose and use sunscreen correctly
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SPF and PA levels determine how well you protect your skin from UV rays. In this article, we explain how Korean skincare recommends sun protection...
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Skin barrier part 1: Differences between UVA, UVB and UVC rays
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Skin photoaging caused by ultraviolet rays is one of the biggest enemies of skin youth. What exactly are UV rays – and how can you...
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