The Science Behind Blue Light Protection And Digital Ageing
Whether your parents lectured you on the importance of sun cream, or your first experience of stinging red cheeks provided your education on the sun’s powerful rays, the majority of us are now aware of the threat that ultraviolet light poses to the skin. Yet there is a lesser-known (and just as dangerous) type of light from which we cannot escape, even when indoors. Blue light, also known as high energy visible (HEV) light, accounts for around one-third of all light visible to the human eye. Its primary source is the sun, however, artificial blue light is also emitted from televisions, phones, tablets and even the light bulbs in our homes. The influx of technology and inescapable screen time introduced to our society over the past few decades has sparked research into the effect that blue light has on our bodies. The findings so far – prolonged screen exposure can cause premature ageing, therefore we must consider blue light protection methods.
How Does Blue Light Cause Ageing?
Blue light is absorbed by organic compounds known as flavins. These are found in the skin. During the absorption process, a reaction is triggered that produces unstable oxygen molecules, or free radicals. These molecules subsequently damage the collagen found in the dermal layer of the skin. In 2017, researchers found that blue light can also induce oxidative stress in keratinocytes, the primary type of cell found in the epidermis.
A more recent clinical study revealed that blue light irradiation brought about changes in skin chromophores, increasing hyperpigmentation and photoageing. All of these findings suggest that blue light contributes to ageing in a similar way to UVA light.
How To Protect Your Skin Against Blue Light
The damage HEV light causes is cumulative, and begins when we are first exposed to screens. To avoid the effects of ageing, we need to introduce blue light protection measures as early as possible.
Apply A Topical Antioxidant
Antioxidants are substances that help to protect the skin from oxidative damage. Many skincare products include antioxidants such as vitamin C, vitamin E and ferulic acid, however, specialist serums provide a greater spectrum of antioxidants at more advantageous concentrations. Skincare brands such as ZO® and Obagi® create premium products that fight free radicals.
Use A Broad-Spectrum SPF
Many SPFs are now formulated to combat the oxidative stress caused by blue light. Look out for products containing ingredients such as licochalcone A and hyaluronic acid to prevent photoageing and reduce the appearance of wrinkles.
Blue Light Screen Protection
Proximity is a factor when considering blue light exposure. The closer a screen is to your face, the more damage it can do. Blue light screen protectors block light between 380-500 nanometers without distorting the image displayed and can be purchased for tablets and phones.
Reverse Signs Of Ageing At North West Aesthetics
If you feel that your skin is already showing signs of ageing, book an appointment at North West Aesthetics today. We offer a diverse range of treatments that combat fine lines and wrinkles, pigmentation and sagging skin.
To ensure you choose the most suitable procedure for your skin, a pre-treatment consultation is a must. During this time, one of our team will assess your skin and suggest your most appropriate options. Popular procedures include Dermal Fillers, Anti-wrinkle Injections, Chemical Peels and Laser Treatments.
To book your consultation, call 01942 909 003 or complete the short contact form on our website. Follow us on social media to keep up to date with our latest news and offers. You can connect with us on Instagram, Twitter and Facebook.