The culprit? Blue light emitted from digital devices.
But over-exposure to short-wave blue light in particular - with wavelengths between 415mm and 455mm - can be harmful to the eyes and circadian rhythm or sleep cycle. A small but seminal study published in the Journal of Investigative Dermatology in 2010 found that skin exposed to blue light from the sun experienced darker and more lasting hyperpigmentation, than when the same person's skin was exposed to UVA rays.
Back home, local company Crystal Tomato, known for its oral supplements, created its first sunscreen promising 54 per cent blue-light protection last year, after five years of clinical testing.Dr Chiam says:"The benefits of these products are usually difficult to evaluate in the short term, as effects like photoageing occur over a long period of time."
When choosing sunscreen, opt for a physical sunscreen over a chemical one. Physical sunscreens use natural minerals to create a barrier between your skin and the sun, while chemical sunscreens prevent the sun's harsh UV rays from going into your skin by absorbing them.
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