By now we’ve learned to protect ourselves from the sun’s harmful UV rays with daily sunscreen use. But there’s another form of light that can also damage our skin: blue light.
What exactly is blue light? Formally known as High Energy Lift (HEV), it’s a wavelength of light not only found in daylight, but also the light emitting from the screens on our phones, TVs, tablets, and computers. “Blue light technically encompasses certain wavelengths of the visible light spectrum — not ultraviolet radiation,” says Adam Friedman, M.D., an associate professor of dermatology and residency program director of George Washington School of Medicine and Health Sciences.
It’s arguably the type of light we’re most exposed to; between emails, texts, social media, and the occasional phone call, we’re pretty much always either staring at a computer screen or a smartphone. At the forefront of research on skin’s circadian rhythm and skin cell repair, Estée Lauder continues to study factors that cause skin cells to become “out-of-sync”, including the influence of nighttime blue light. At night, exposure to artificial blue light can signal that it is still daytime and time to remain awake. Estée Lauder scientists designed a special incubator “blue light chamber”, and conducted a series of in vitro experiments to research the effect of blue light from LED light on skin cells. These findings show, for the first time that blue light impacts skin cells’ natural nighttime rhythm. This means that nighttime blue light exposure can inhibit the skin’s natural nighttime renewal, which may result in accelerated skin aging.
It’s unrealistic to ask anyone to cut off technology at night completely. . Luckily for us, where there’s a skin problem, there’s also a skincare product ready to help treat and prevent future visible damage, like the new Esteé Lauder Advanced Night Repair Eye Supercharged Complex, which contains Hyaluronic Acid, ChronoluxCB™ and powerful antioxidants to help the delicate skin around the eye area look smoother and protect against free radical damage. Use of trusty skincare products can help your skin fight the visible effects of your late screen addiction!
*Source: Estée Lauder Research demonstrates for the first time that blue light exposure at night desynchronizes skin cells’ natural circadian rhythm which can lead to accelerated signs of aging.
 In vitro testing
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