Blue light is everywhere, but what exactly does it do to our skin? Let’s go over some basics. Blue light, also known as high-energy visible (HEV) light, is a type of light that has a short wavelength and high energy. It is emitted by the sun, electronic devices (such as smartphones, tablets, and computer screens), and artificial lighting. 

While natural blue light has some benefits — such as regulating our sleep-wake cycle and boosting mood and cognitive function — excessive exposure to blue light (especially from electronic devices) can have some negative effects on our skin:

• Skin Aging: Studies suggest that prolonged exposure to blue light can contribute to premature skin aging. Blue light can penetrate the skin more deeply than UVB rays and generate reactive oxygen species (ROS), leading to oxidative stress. ROS can damage collagen and elastin fibers, which are responsible for the skin's firmness and elasticity. Over time, this may result in the appearance of fine lines, wrinkles, and sagging skin.
• Hyperpigmentation: Blue light exposure can also trigger hyperpigmentation, especially in individuals with darker skin tones. It can stimulate the production of melanin, the pigment responsible for skin color. Excessive melanin production can lead to the formation of dark spots, uneven skin tone, and melasma.
• Inflammation: Blue light exposure may induce inflammation in the skin. It can activate immune cells called mast cells, which release pro-inflammatory mediators. This inflammation can manifest as redness, sensitivity, and skin barrier impairment.
• Disruption of Circadian Rhythm: Blue light exposure, particularly in the evening or at night, can disrupt the body's natural circadian rhythm. Disrupted sleep-wake cycles can affect the skin's ability to repair and regenerate, leading to dullness, dryness, and an overall compromised skin barrier.
• Aggravation of Existing Skin Conditions: Some individuals with pre-existing skin conditions, such as rosacea and eczema, may experience worsened symptoms with blue light exposure. Blue light can activate heat-sensitive receptors in the skin, triggering flushing, inflammation, and itchiness.

This is where Dr. Sethi’s research-backed blue light skincare saves the day. Establishing a proper routine and investing in science-backed skincare for blue light protection can help reduce the effects of blue light and keep your skin glowing!

Protection starts with blue light skincare products, but there are things you can do to protect your skin day-to-day. Here are a few quick tips:  

• Limit screen time and take regular breaks from electronic devices.
• Use blue light filters or screen protectors on electronic devices.
• Apply broad-spectrum sunscreen that contains physical blockers like zinc oxide or titanium dioxide, as they can help to reflect blue light.
• Use blue light-blocking skincare products with antioxidants that can help neutralize the free radicals generated by blue light exposure.
• Maintain a healthy skincare routine with gentle cleansers, moisturizers, and targeted blue light protection skin care like the Blue Light Defense Trio to support the skin's natural defense mechanisms.

The studies on blue light’s effects on the skin are fairly new, and it's worth noting that more research is needed to fully understand the long-term effects of blue light on the skin. But we believe that prevention is the best medicine! Doing what you can now to avoid excessive exposure and investing in high-quality blue light defense skincare can help protect your skin. 

The primary focus of blue light skincare products is often on protecting the skin from the potential negative effects of blue light exposure, rather than repairing the skin barrier itself. So while the Blue Light Defense Trio can help prevent further damage, we recommend choosing the Skin Barrier Repair Kit instead. You can also check out our blog to learn more about how to repair your skin barrier.