Blue light: what we do and don't know about the damage it causes our skin

By Karl Lawrence, Post Doctoral Researcher, Photobiology, King's College London

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…

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