Researchers have long warned about blue light's effects on eyes and sleep. Now, a leading U.S. dermatologist highlights its potential to harm skin, speeding up aging processes in the epidermis.
In 2018, Spanish researchers identified blue light as a risk factor for age-related macular degeneration (AMD), a retinal disease typically affecting those aged 50-60. Earlier that year, an EU-funded study explained how nighttime screen use blocks melatonin secretion, disrupting sleep.
The concerns extend to skin. Michele Farber, MD, a dermatologist with the Schweiger Dermatology Group, shared in a Huffington Post US article on April 30, 2020, that prolonged exposure can cause irreversible damage like sagging, fine lines, and dark spots—essentially accelerating skin aging.
“Watching TVs and phones at night disrupts sleep cycles. Poor sleep triggers hormonal imbalances that worsen skin issues and hasten aging,” Dr. Farber explained.
No need for panic—sun exposure remains far riskier, potentially causing skin cancer. Research on blue light's skin effects is still emerging, with limited studies available to quantify risks precisely.
In the interim, protect yourself: Activate your device's blue light filter, wear glasses with blue light-blocking lenses, or use both. Dr. Farber also recommends sunscreen with titanium dioxide and zinc oxide, which reflect blue light rays.
