The Truth about Blue Light: How to Protect your Skin

Blue light is quickly becoming the buzz word amongst skin experts. Why? While we have long known the damaging effects of UV on our skin, recent research is bringing to attention the increasing risks of blue light, such as premature aging and pigmentation.  

What is blue light?

Visible blue light is a high-energy, short-wavelength light. While this form of light is predominantly emitted from the sun, we are increasingly being exposed to it throughout digital devices such as our mobile phone and computer; a source that is up-close and direct. 

Similar to UV, blue light can be beneficial in the daytime, and has been known to increase attention, aid memory, and elevate mood. However, exposure to blue light at night, i.e through our phones, is frequently being linked to premature aging and skin damage. So, as modern life develops and we become more reliant on our digital devices, we are increasingly being exposed to the damaging effects of blue light. This is, of course, amplified further in a time of lockdowns and social distancing where we are frequently forced to not only work, but socialise, through our screens. As a result, our digital devices are quickly becoming known as the “silent agers” of our generation. So, if you are serious about preventing early onset wrinkles, read on to find out about what the studies have been saying and how you can prevent this. 

The science behind blue lights damaging effects:


Despite not being as damaging as UV, blue light can penetrate our skin, and via free-radical generation, can induce oxidative stress; a known attribute to premature ageing. In fact, blue light can penetrate our skin more deeply than UV and even reach our dermis where it can damage our collagen and elastin, resulting in loss of firmness and elasticity in the skin. 


As many of us know and have experienced, blue light from our devices can affect our sleep cycle - this is because it alters our melatonin levels, which is our sleep hormone. However, research has shown that blue light exposure during the night can also impact our cell’s natural circadian cycle. When the sun goes down your skin cells start a nighttime regeneration process to repair daytime damage. However, by being exposed to blue light at nighttime, our skin cells continue to think it's daytime, which negatively impacts our nighttime repair process. The result? Signs of premature aging and dark circles. 

How to protect your skin:

Before you consider throwing away your phones and taking refuge in a dark room, there are ways to protect yourself from the impact of blue light. Whilst you can buy anti-blue light screen protectors for your phone, the most effective way to prevent blue light exposure is through your skincare routine. 

Introducing náu's Bio-Smart Anti-Blue Light Serum. Infused with high concentration of Ectoin and Plankton, this naturally infused serum will not only protect your skin from the damages of blue light, but will actively promote the regeneration of your skin cells to alleviate the visible effects of damage. How? The outstanding cell-protecting properties of Ectoin will simultaneously protect and regenerate cells, while the Plankton extract stimulates fibroblast cells, which increases the skin's production of collagen and elastin that is damaged by blue light exposure. The revitalising effect of both these powerful ingredients together, deeply penetrates the skin for immediate results and leaves your skin feeling nourished and rejuvenated.