Is Blue Light Bad for Your Skin?

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We know that blue light is very damaging for our eyes and our sleep cycle. It affects our eyes and causes eyestrain syndrome, and it also disturbs our circadian rhythm that is our 24-hour cycle.

But, do bluish light damage our skin too?

The short answer to this question is yes. Bluish light also damages our skin in many ways. Blue type of light is responsible for photoaging, hyperpigmentation, wrinkles, and redness.

What is Blue Light?

It is high energy visible light with a wavelength ranging from 380-500 nm(nanometers). The natural bluish light source is the only sun. But artificial bluish light sources are our everyday life’s digital devices like LEDs, Computers, smartphones, etc. 

Sun emits all types of lights, including blue type of light. Bluish light is short-wavelength light in the electromagnetic spectrum or also known as the light spectrum.

How This Damages Our Skin?

Bluish light is responsible for oxidative stress. We know that oxidative stress is not suitable for our skin. When this light hits our skin, reactive oxygen species, or free radicals are produced, causing oxidative stress.

Free radical produced then causes skin cells to produce specific enzymes, which then damage DNA, responsible for inflammation and breakdown of healthy collagen and elastin. The breakdown of collagen and elastin then leads to the appearance of early aging. 

Bluish light can penetrate deeper into our skin. Its penetration power is more than UVA and UVB light. UVA and UVB are types of ultraviolet light which is responsible for causing cancer. When penetrating deeper into our skin, this light damage essential proteins, resulting in the formation of wrinkles.

Some studies show that bluish light is responsible for melasma. Melasma is a specific condition in which hyperpigmentation of the skin occurs. So, this light is also causing hyperpigmentation or the development of brown spots on our faces.

Hyperpigmentation and production of wrinkles both are responsible for the early appearance of aging on our faces. Bluish light damages our skin on the face more as compared to our body’s skin. The reason is we are always using and holding mobile phones just above our faces.

Excessive exposure to Blue type of light also weakens our outermost layer of the skin and delays its recovery from daily skin stress.

Do This Cause Cancer?

There are some recent studies related to the blue type of light. These studies show that night time exposure to bluish light from smartphones, LEDs, or computers can cause breast cancer and prostate cancer. Scientists are also claiming that colorectal cancer is also caused by bluish light. Colorectal cancer is 3rd most common type of cancer.

Is all Blue Light harmful?

This type of light is not also bad at all. It has many benefits to us as well. Natural Bluish light from the sun is responsible for suppressing melatonin production in our bodies and secretion of hormones like adrenaline and cortisol, which are responsible for our alertness during the day.

Blue light for acne can treat moderate types of acne. Specific wavelengths of this type of light can kill a bacterium known as P. acne. P. acne is responsible for causing acne in our skin. Bluish light can help us out with this problem. This treatment with bluish light is known as blue light therapy.

People with the seasonal affective disorder or SAD also use bluish light lamps. These bluish light lamps emit blue type of light, and daily exposure to this bluish light from these lamps can treat the seasonal affective disorder. Seasonal affective disorder is a type of depression caused by less exposure to natural sunlight during winter months.

Bluish Light is also used for the treatment of pre-cancerous cells along with some drugs. This therapy is known as photodynamic therapy.

What should I do to avoid Skin damage from Blue Light?

  • Use blue light filters on your computer and smartphone screens.
  • Use blue light glasses that will help prevent delicate skin near your eyes from damaging effects, and it will also help prevent your eyes from eyestrain syndrome.
  • Use a sunscreen that contains antioxidants. Iron oxide is an antioxidant which is proved to prevent your skin from damaging effects of this light.
  • Decrease your screen time.

This thing is proved that blue light damages our eyes and causes eye strain syndrome. But damages of this light to skin still need some more research. Although some studies show that bluish light is damaging our skins, it still needs to be researched at a greater level.

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