The screens, friend or foe of the skin? A recent in vitro study shows the effects of artificial blue light on the cells. Discover the advice of a dermatologist to protect yourself.
According to public health agency France, the French would spend an average of 5h07 a day on the screens, against 3:10 ten years ago. Smartphone, tablet, computer and LED lamps… All these devices emit blue light. If the latter is delivered with a lower energy than that emitted by the sun and ultraviolet, scientists have shown that it is harmful to the retina, resulting in AMD (progressive or central loss of vision).
What about the skin? An in vitro study published by the Journal of Dermatological Science in May 2018 revealed that exposure to this artificial light also results in molecular damage to the mitochondria (cell power plant) that will induce a Oxidative stress and thus an acceleration of skin ageing. If the research was done on cells grown in the lab and not on a human being, prevention is better than cure. Discover three ways to protect yourself from artificial blue light.
1/Choose a mineral sunscreen
According to dermatologist Marie-Estelle Roux, the recommendations are the same as those to guard against the blue light of the sun. Starting with sunscreen. “We often think of choosing a sunscreen anti UVA-UVB but not with a blue light filter,” explains the dermatologist. This light is just as dangerous because it penetrates deep. You have to protect yourself every day. ” The specialist recommends mineral sunscreen, containing zinc dioxide or titanium dioxide, which will act as reflectors and thus block the Rays but also the blue light.
The foundation is an ally of the good mines but also an effective defender against the blue light. “Anything that blocks the view, will block the blue light,” the dermatologist explains. The pigments are part of it. ” Preferably choose a well-covered, opaque foundation. Especially Phototype III and above (pale skin and dark eyes). “If they do not protect themselves from the blue light, they may have stains on the skin, melasma type or pregnancy mask”, alert Dr. Marie-Estelle Roux.
3/Control your screen time
In order to monitor the time spent in front of your screens, Apple has set a screen time feature on the latest IOS 12 version of the IPhone. The same process also exists with its Android competitor. On average, specialists recommend between two and three hours of screen per day. And if you’re working on a computer, tablet or smartphone all day, try equipping your device with a blue light filter.