Master, Resident Doctor Hoang Quoc Tuan, from the Dermatology Department, Dermatology and Allergy Center, Military Central Hospital 108, notes that office workers, students, and professionals in technology, media, finance, and healthcare are groups frequently exposed to electronic screens. Beyond common effects like eye strain, headaches, or sleep disorders, skin also experiences significant impacts that are often overlooked.

Blue light emitted from computer and phone screens, as well as LED lighting systems, can penetrate deeply into the skin, affecting the dermis layer. This layer contains collagen and elastin, which are crucial for skin elasticity and firmness. Prolonged exposure to blue light increases free radical formation, accelerating premature aging, leading to wrinkles, sagging, and reduced firmness. Furthermore, enclosed, air-conditioned work environments can cause skin dehydration and weaken the skin barrier, increasing the risk of dry skin, irritation, and dermatological conditions.

Blue light not only affects the skin directly but also indirectly through sleep disturbances. Using electronic devices in the evening, especially before bed, inhibits the secretion of melatonin, a hormone vital for regulating circadian rhythms and sleep. Chronic sleep deprivation reduces the skin's ability to regenerate and recover, promoting aging and resulting in dull, lifeless skin.

Working long hours in front of a screen affects the skin. Photo: Pexels

Therefore, for individuals whose work requires frequent use of computers and phones, proactive and proper skin care and protection can significantly mitigate negative impacts.

Use sunscreen to protect your skin: Many believe sunscreen is only necessary outdoors. However, even when working indoors, skin is still affected by blue light from screens and artificial light. Sunscreen is an essential step in a daytime skincare routine. Choose a broad-spectrum sunscreen with an SPF of 30 or higher, capable of protecting skin from both UV rays and blue light. Sunscreen should be applied adequately and reapplied every two to three hours if working continuously in front of a screen.

Incorporate antioxidant products: Antioxidant ingredients like vitamin C, vitamin E, and niacinamide help neutralize free radicals generated by blue light exposure. Specifically, vitamin C, when used during the day and combined with sunscreen, creates a "double protective barrier," enhancing anti-aging capabilities and improving skin brightness and even tone. Regular use of antioxidant-rich products not only protects the skin but also supports long-term skin recovery.

Ensure adequate skin hydration: Moisturizing is crucial for maintaining a healthy skin barrier. Individuals who spend extensive time in front of screens should choose a moisturizer suitable for their skin type, prioritizing products containing hyaluronic acid, glycerin, and ceramide, which help retain water and restore the skin barrier. Additionally, drinking enough water daily is equally important. Depending on body weight and activity level, each person should consume an average of about 2–2,5 liters of water per day to ensure both the body and skin remain well-hydrated.

Maintain proper working distance and posture: The safe distance between your face and the computer screen should be 60–70 cm; the distance from the keyboard to your face should be about 30–40 cm. Correct sitting posture not only reduces strain on the eyes, neck, and shoulders but also limits prolonged, close exposure of the skin to blue light sources.

Practice proper facial hygiene: A common misconception is that enclosed office environments have less dust. In reality, fine dust still exists and can adhere to the skin, especially as blue light makes the skin more susceptible to absorbing pollutants. Therefore, cleansing the face after a workday is important. Use a gentle cleanser suitable for your skin type to remove dirt, excess oil, and bacteria without damaging the skin's protective barrier. Furthermore, avoid touching your face while working, as keyboards and computer mice harbor many bacteria.

Allow time for skin and body relaxation: After every one to two hours of continuous work, take a few minutes to stand up, move gently, breathe deeply, drink water, and rest your eyes. These short breaks not only alleviate eye and nervous system strain but also help improve blood circulation, providing better oxygen and nutrient supply to the skin.

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