Too much view of the LCD screen, shock antioxidants and countermeasures such as sunscreen, such as "not good for the skin"

In recent years, the time spent in the house and the time to use the Internet have increased, and the harm of Blue Light has become a hot topic before.Laptops, smartphones, tablets, television, and LED bulbs are all sources of blue light.In this era when you can't live without these devices, are we all taking blue light throughout your body?Should I worry more about skin damage?

The danger of ultraviolet rays (causing skin aging and skin cancer) is common sense, while the impact of the blue lights emitted by indoor light sources on the skin has not been scientifically elucidated.Although blue light could cause excessive pigmentation and skin aging, it has long been a debate on how much it will be harmful.

So I talked to an expert about the true risk of blue light.

What is blue light?

The first thing you can think of when you hear the harm of light is ultraviolet rays.While ultraviolet rays are invisible, blue light is a visible ray.It looks like a cold white light like an LED bulb, or it may not look very blue.The indoor light source emits light of various wavelengths, which combines them to create light colors.

Although the effects on the skin have not been completely elucidated, blue light is a major health concern.It harms other than skin."Blue light damages the retina, reduces melatonin secretion and hinders sleep cycle," says New York dermatologist Michel Henry.

Of course, the distance from the light source is also an important factor in considering the danger."The amount of blue light from TV is smaller than a computer. The TV is farther away," Henry says."And the amount of mobile phones is more than a computer, because it's very close to your face."

── How does blue light damage the skin?

While ultraviolet rays directly damage the DNA of the cell, blue light destroys collagen through oxidative stress.The flavin substance contained in the skin absorbs blue light, but the reaction that occurs at that time creates an unstable oxygen molecule (freelance) that damages the skin.

Henry says, "Free radicals come in, and simply put holes in collagen (skin)," Henry says.