Skincare companies claim that their products can defend someone from the impacts of blue light. But to understand the effects of blue light, First, one needs to know what blue light is.
Visible light constitutes 50 percent of the sunlight spectrum. As the name suggests, it’s the only component of light that the human eye can observe. The blue band of this visible spectrum retains an extremely high energy level.
The lengthier the wavelength, the less energy it disperses. Blue light, however, has very short, high-energy waves.
Blue light is present everywhere around us, and the sun emits blue light, and So do fluorescent and incandescent light bulbs, mobile phones, computer screens, and flat-screen televisions.
There is a lot of evidence that blue light can harm the skin and eyes and destroy the circadian rhythm, which is our internal clock. Generally, studies examining the impact of solar radiation on the skin have focused on ultraviolet radiation, especially UVB, which is accountable for sunburn.
The most often reported effect of blue light exposure is a considerable increase in reactive oxygen species (ROS), highly reactive chemicals built from oxygen. Too much ROS can harm one’s DNA and key enzymes like those responsible for DNA repair, thereby boosting one’s risk of cancer.