The theme of blue light has been a cause for controversy, fashion and fear. What blue light are we talking about? Which is derived from mobile devices such as smartphones and tablets that we use daily. In principle it has been debated that this type of light has a strong impact on the health of our eyes.
Now, the health debate has risen to a new level. It is argued that the effect of blue light directly affects our skin. Hence, creams have emerged to combat these problems that blue light can originate especially in our face. And of course, today we live with this type of lighting every day.
The tendency that it is necessary to protect the health of our skin from blue light has been promoted by both brands and influencers. According to the diffusion carried out, blue light is able to accelerate aging, until it becomes a premature factor.
Blue light and wavelength
These effects on the skin seem to have to do with the wavelength. This type of light has the same hue as ultraviolet light. So melanocytes would experience a stress capable of oxidizing their properties. So that the creams that are being marketed, are focused on fighting the effect of this oxidation of the skin. Partly because they manage to provide perfect hydration for the skin.
Yes, scientifically it is known that the effect of blue light has properties very close to those represented by ultraviolet light. The wavelength is between 476 and 427 nm. In the case of sunlight, this range is from 400 to 100 nm. It is important to indicate that the smaller the range, the stronger the impact.
According to various studies, red light has a range from 780 to 619 nm. So the blue light and its wavelength are at an intermediate point. It is known that a wavelength that really generates a negative impact on skin health is less than 315 nm.
Is it necessary to adopt sun creams?
So the question that everyone who is attentive to this issue is being asked at the moment is: is it worth investing in creams that promise to protect our skin? The underlying theme is not only the intensity of the blue light, but all the exposure time facing the skin.
The human body has the innate ability to shield itself from excessive radiation. The thing is that comparing blue light and solar radiation seems a bit crazy. You will clearly think that there is no point of comparison between both types of radiation. Even so, there is scientific evidence about this.
What has been discovered is that blue light can be used for treatments of people with acne. So in that sense there can be a beneficial utility. This is because blue light can kill bacteria. So, if it can kill bacteria: is that data enough to argue that blue light is potentially harmful? No: at least for now it has not been identified that really affects the health of the skin.
There is no scientific basis
So the discourse of being necessary to adopt creams to keep safe does not have a clearly scientific basis. So far it has not been possible to quantify what the damage caused by the type of blue light on the skin may be. That this type of light manages to impact on bacteria, only demonstrates that it affects a group of organisms other than those represented by the skin.
All this leads to the conclusion that there is no major impact of blue light on our skin. Of course, if there is a possible risk with regard to the health of the eyes, but in most studies it has been proven quite the opposite, that there is no risk level high enough to be worrying.
The effect that blue light has, according to several scientists, is not powerful enough to affect eye health and much less for skin health. So if you are thinking of going to creams, this kind of attitude is quite illogical and meaningless