Blue Light : The use of cell phones, computers or tablets is not good for health. These digital devices emit blue light, a form of high-energy visible light with short wavelengths. Experts find the blue light can damage your skin.
They conducted research on the relationship between our social media scrolling habits and our dependence on other electronics with skin health. The result is blue light can indeed penetrate deep into the skin.
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Certified dermatologist Rebecca Marcus, MD, says research into this is still in its early stages, but it’s thought that like ultraviolet (UV) light, blue light causes damage over time.
“While we may not see any effect in the short term, it is likely contributing to the gradual breakdown of collagen, wrinkling and hyperpigmentation,” he explained.
One study published in Oxidative Medicine and Cellular Longevity found exposure to blue light causes so-called oxidative stress through the formation of free radicals. “This, in turn, damages DNA,” he explained.
This damage causes damage to our collagen and elastin, the two proteins that make skin look plump and youthful. Another study published in the Journal of Investigative Dermatology points to blue light as a possible contributor to skin photoaging, triggering pigmentation problems and exacerbating difficult-to-treat skin conditions like melasma.
In addition, according to a review published in the Journal of Cosmetic Dermatology, prolonged exposure can also weaken your skin barrier. “This can open the door to problems like skin sensitivity, dryness, redness, and breakouts,” she says.
In summary the current body of research shows over time, unprotected exposure to blue light can contribute to sagging skin, wrinkles, pigmentation, and sensitivity.
While research is ongoing, experts say there’s no harm in preparing your skin for the potential damage of blue light. Sunscreen should be at your forefront. He suggests using a broad spectrum physical sunscreen with zinc oxide and iron oxide for protection.
While chemical sunscreens only protect against UVA and UVB rays, physical sunscreens that contain zinc oxide and iron oxide act to physically protect the skin from a broad spectrum of light, including blue light.
Use sunscreen every day, even if you are not outside. There are several key ingredients in skin care products that you should always have at hand.
“Antioxidants will help protect against oxidative stress by neutralizing free radicals,” he adds.
Look for antioxidants like vitamin C, which do double duty as they help prevent hyperpigmentation as well. She also recommends skin care products that contain niacinamide, a form of vitamin B-3. This antioxidant has anti-inflammatory properties and research shows it can support your skin’s barrier, improve texture and tone, and smooth out fine lines.
A 2020 study published in the International Journal of Cosmetic Science also found that it also has the potential to protect your skin from pigmentation caused by blue light.