Blue Light and Skin

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.

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.

To protect your skin, incorporate skincare products rich in antioxidants like vitamin C or niacinamide, which help neutralise free radicals caused by blue light exposure. Broad-spectrum sunscreen, even indoors, can also shield against HEV damage. 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 or 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 like 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.