Take a wander down the skincare aisle of any health and beauty retailer and you’ll be met with a bewildering array of creams and sprays, promising to protect you from various threats to your skin. You might have noticed skincare companies claiming their products can protect you from the effects of blue light. If you hadn’t thought about blue light before, you’d be forgiven for worrying about whether you should be concerned. First, you need to understand what blue light is. Visible light accounts for 50% of the sunlight spectrum and, as the name suggests, it’s the only part of…
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