1. THE DARK SIDE OF THE SUN:
THE FULL SPECTRUM OF AGGRESSORS
The very energy source that gives us light and life, the sun, is also the source of multiple environmental ageing factors. The effects of UVB have been known for years: sunburn and ￼skin damage. But UVB is just one facet of sun-induced ageing. UVA and infrared rays, present all year round even in cloudy weather, penetrate deep within the skin, degrading its essential building blocks.
2. POLLUTION: A SILENT MENACE FOR SKIN
When it comes to sun exposure, the skin "warns" us when we have exceeded our tolerance threshold with erythema, pain and swelling. In other words, ￼sunburn. But there is no such visible response to pollution, making it an invisible threat for skin. In fact, there is mounting evidence that pollution amplifies and compounds the effects of solar radiation on skin.
3. WHAT DOES THIS MEAN FOR YOUR SKIN?
UV and pollution particles work together to send pigment-producing cells into overdrive at the skin surface, leading to premature ￼age spots and a dull or grey-looking skin tone. They also deplete skin's surface barrier, provoking dryness and heightened sensitivity. Deep down, oxidative stress "eats away" at skin's support structures, encouraging the development of more wrinkles. Overall, the face looks older than its years.
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4. DID YOU KNOW?
THE EFFECT OF POLLUTION IS A HOT TOPIC IN SCIENCE
Environmental ageing expert Professor Krutmann led an in-depth study on 400 women - half of them urbanites - in order to confirm the effects of a polluted environment on skin. The results were clear: there is a direct link between pollution levels and ￼premature ageing signs, with 20% more age spots in the urban group.