2020
DOI: 10.20517/2347-9264.2020.154
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Environmental aging of the skin: new insights

Abstract: The appearance of aging is determined primarily by extrinsic factors through exposure to environmental sunlight and airborne pollution. That solar ultraviolet B (λ = 290-320 nm) directly causes photoaging (with wrinkles, dryness, and mottled pigmentation) and skin cancer has been recognized for decades; the contribution by ultraviolet A (λ = 320-400 nm) was only more recently understood. New research further implicates visible light (λ = 400-700 nm) as well as the heat rays of infrared radiation (λ > 800 nm). … Show more

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Cited by 1 publication
(1 citation statement)
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“…The most common causes of wrinkles are age-related changes and ultraviolet radiation. 1,2 Wrinkles can be Static wrinkles: These wrinkles are visible at all times and do not change in appearance with facial movements. Dynamic wrinkles: These are expression lines that may appear as folds when the skin is not moving, and deepen with facial movements or expressions.…”
Section: Introductionmentioning
confidence: 99%
“…The most common causes of wrinkles are age-related changes and ultraviolet radiation. 1,2 Wrinkles can be Static wrinkles: These wrinkles are visible at all times and do not change in appearance with facial movements. Dynamic wrinkles: These are expression lines that may appear as folds when the skin is not moving, and deepen with facial movements or expressions.…”
Section: Introductionmentioning
confidence: 99%