Journal · Protection · 5 min
Blue light and skin: parsing the science.
Screens emit blue light. So does the sun, at concentrations orders of magnitude higher. Read the actual exposure before you buy the marketing.
The Biomedical Emporium® formulation desk
19 May 2026
Blue light exposure from screens is real. It also averages a small fraction of what an outdoor lunch in the Emirates delivers in ten minutes. The framing of screens as a major pigmentation driver is, at current exposure levels, an oversell.
That said, high-energy visible light does contribute to melanogenesis on Fitzpatrick IV to VI skin, at any dose. An iron oxide sunscreen adds meaningful blue-light protection on top of standard UV coverage and is worth choosing for anyone treating melasma.
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