What is High Energy Visible Light (HEV)?
It is also known as blue light. A colour in the visible light spectrum with the shortest wavelength and the highest energy. It lives right next door to the invisible ultraviolet rays that can be harmful to your skin. - See where I'm going with this?
What are the effects of HEV on your skin?
Over-exposure to UV light can cause painful sunburn and can even lead to cancer. The "energetic" blue light also reaches deeper into your skin and causes oxidative damage. This damage manifests as pigmentation and ageing of your skin. It can also cause inflammation in the skin.
Where do we find HEV/blue light? (Actually; it will find you...)
Why is the sky blue? The sun is our natural source of light. The shorter blue wavelengths from the sun, hit the molecules in the air and are scattered all around. So, the sky looks blue to us.
Artificial blue light is found everywhere. It is given off by LED and fluorescent lights and emitted by our TV, computer and smart phone screens. Considering how much time we spend on these devices and at what close proximity these screens are to our faces, this can add up to quite a bit of exposure!
Is it all bad news?
Not at all! There's no need to go and live underground. We need blue light to regulate our body clocks and even to elevate our mood. Consider the seasonal "blues" associated with less daylight in winter time!
However; DO try to limit your time on electronic devices at night, because blue light can lower the production of the hormone melatonin, which regulates sleep.
How do you protect yourself?
For your skin: Use Sun Skin UV-Derm SPF 50 (available in our store) daily. Even in winter and while indoors. It contains quality filters to protect against UVA, UVB as well as HEV(Blue Light) exposure. As a bonus, this product also contains other sought-after ingredients (like Squalane and Coenzyme Q10), which will make your skin a happy place to be in!
Don't forget your eyes! Invest in a good pair of polarised sunglasses... and for indoor use, a pair of glasses with a blue light filter coating.
Life is too short NOT to enjoy the sun or digital entertainment, but as mother used to say: "All in moderation."