What it is
Blue light and skin health have become more of a focus in dermatology in recent years, especially with the increasing time spent on digital devices. Blue light, a high-energy visible (HEV) light emitted by screens, can penetrate deep into the skin, contributing to oxidative stress and premature ageing. It’s also important to note that the majority of exposure to blue light still comes from the sun, regardless of your screen time.
Overexposure to blue light has been linked to collagen breakdown, uneven pigmentation and dullness. Additionally, it can disrupt the skin’s natural barrier, leading to increased sensitivity.
Blue Light and Skin Protection
To protect your skin, incorporate skincare products rich in antioxidants such as vitamin C and niacinamide, to help neutralise free radicals caused by blue light exposure. Broad-spectrum sunscreen, even indoors, can also shield against HEV damage. Opt for a tinted SPF as a tint is needed in sunscreen to protect against visible blue light. Limiting screen time or using blue light filters on devices can provide further defence. If you are experiencing pigmentation or dullness, treatments such as chemical peels and LED therapy can help restore clarity and vitality.
Research on blue light exposure and its effects on the skin is a growing field but is still relatively limited compared to studies on UV light. While there is evidence that blue light, especially from the sun, can harm the skin, more research is needed to fully understand the effects of artificial sources such as screens. Current advice focuses on prevention, including the use of antioxidant-rich skincare, blue light filters, and sunscreen, particularly for those who spend significant time in front of screens or are exposed to natural blue light outdoors.
