First, you must comprehend what blue light is.

If you walk down the skincare aisle of any health and beauty store, you'll be met with a bewildering array of creams and sprays that promise to protect your skin from various threats.

You may have noticed skincare companies claiming that their products can shield you from the harmful effects of blue light. If you hadn't considered blue light before, you could be forgiven for wondering if you should be concerned.

You are surrounded by blue light. Blue light is emitted by the sun. Fluorescent and incandescent light bulbs, cell phones, computer screens, and flat-screen televisions all contribute to the pollution problem.

Visible light makes up half of the sunlight spectrum and is the only component of light that can be seen with the naked eye, as the name implies. The visible spectrum's blue band has a relatively high energy level.

You are surrounded by blue light. Blue light is emitted by the sun. Fluorescent and incandescent light bulbs, cell phones, computer screens, and flat-screen televisions all contribute to the pollution problem.

The wavelength transmits less energy the longer it is. Blue light consists of short, high-energy waves that characterize blue light.

What are the potential dangers?

According to our findings, blue light can cause pigmentation (tanning) in people of all skin types. While many individuals believe a deep tan to be attractive, it is actually a sign of skin damage and reactive oxygen species (ROS). Other researchers discovered that skin tans caused by visible light (including blue light) had darker pigmentation and lasted longer than those caused by UV radiation.

Blue light has been shown to be detrimental to the skin and eyes, as well as disrupt the circadian cycle (your internal clock). UV radiation, particularly UVB, which causes sunburn, has traditionally been the focus of research into the effects of solar radiation on the skin.

A large increase in reactive oxygen species (ROS), highly reactive molecules produced from oxygen, is the most commonly documented impact of blue light exposure. Too much ROS can harm your DNA and critical enzymes including those involved in DNA repair, raising your cancer risk.

Another study found that blue light from screens is 100-1,000 times less strong than blue light from the sun. Melasma, which causes patches of skin discoloration, was also not triggered in people with the illness.

While we do spend more time in front of devices than ever before, the harm caused by screens is insignificant in comparison to the harm caused by sun exposure.