What impact do ultraviolet rays have on our skin?

Ultraviolet rays have an impact on our skin. They are the main cause of skin cancers and premature skin aging. Françoise Bernerd, Head of L'Oréal’s Light and Pigmentation Laboratory, explains in detail the impacts of UVB rays, such as sunburn and skin cancer, and UVA rays, the main cause of premature skin ageing. 

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